diff --git a/vnpy/app/stock_screener/__init__.py b/vnpy/app/stock_screener/__init__.py
new file mode 100644
index 00000000..93e5550f
--- /dev/null
+++ b/vnpy/app/stock_screener/__init__.py
@@ -0,0 +1,15 @@
+# encoding: UTF-8
+
+import os
+from pathlib import Path
+from vnpy.trader.app import BaseApp
+from .engine import StockScreenerEngine, APP_NAME
+
+
+class ScreenerApp(BaseApp):
+    """"""
+    app_name = APP_NAME
+    app_module = __module__
+    app_path = Path(__file__).parent
+    display_name = u'选股引擎'
+    engine_class = StockScreenerEngine
diff --git a/vnpy/app/stock_screener/engine.py b/vnpy/app/stock_screener/engine.py
new file mode 100644
index 00000000..84a1bb51
--- /dev/null
+++ b/vnpy/app/stock_screener/engine.py
@@ -0,0 +1,698 @@
+# encoding: UTF-8
+
+# 选股引擎
+
+import os
+import sys
+import logging
+import importlib
+import traceback
+import pandas as pd
+import numpy as np
+
+from collections import OrderedDict
+from typing import List, Any, Callable
+from datetime import datetime, timedelta
+from functools import lru_cache
+
+from concurrent.futures import ThreadPoolExecutor
+# 华富资产
+from vnpy.event import EventEngine, Event
+from vnpy.trader.constant import Exchange, Interval  # noqa
+from vnpy.trader.engine import BaseEngine, MainEngine
+from vnpy.trader.event import EVENT_TIMER  # noqa
+
+from vnpy.trader.util_wechat import send_wx_msg
+from vnpy.trader.util_logger import setup_logger
+from vnpy.trader.constant import Exchange, StockType
+from vnpy.trader.object import LogData, BarData
+from vnpy.data.tdx.tdx_common import get_tdx_market_code
+from vnpy.data.common import stock_to_adj
+from vnpy.trader.utility import load_json, save_json, get_csv_last_dt, extract_vt_symbol, get_folder_path, TRADER_DIR, \
+    append_data
+from vnpy.data.stock.stock_base import get_stock_base
+from vnpy.data.stock.adjust_factor import get_all_adjust_factor
+from vnpy.app.stock_screener.template import ScreenerTemplate
+
+APP_NAME = 'StockScreenerEngine'
+# 选股器日志
+EVENT_SCR = 'eScrLog'
+
+
+class StockScreenerEngine(BaseEngine):
+    """
+    选股引擎
+    """
+
+    # 策略配置文件
+    setting_filename = "screener_setting.json"
+
+    def __init__(self, main_engine: MainEngine, event_engine: EventEngine):
+        """"""
+        super().__init__(main_engine, event_engine, APP_NAME)
+
+        self.main_engine = main_engine
+        self.event_engine = event_engine
+
+        self.strategies = {}  # 所有运行选股策略实例
+        self.classes = {}  # 选股策略得类
+        self.class_module_map = {}  # 策略模块与策略映射
+
+        # 是否激活 write_log写入event bus(比较耗资源）
+        self.event_log = False
+
+        self.strategy_loggers = {}  # strategy_name: logger
+
+        self.thread_executor = ThreadPoolExecutor(max_workers=1)
+        self.thread_tasks = []
+
+        self.create_logger(logger_name=APP_NAME)
+
+        # 获取全量股票信息
+        self.write_log(f'获取全量股票信息')
+        self.symbol_dict = get_stock_base()
+        self.write_log(f'共{len(self.symbol_dict)}个股票')
+        # 除权因子
+        self.write_log(f'获取所有除权因子')
+        self.adjust_factor_dict = get_all_adjust_factor()
+        self.write_log(f'共{len(self.adjust_factor_dict)}条除权信息')
+
+        # 寻找数据文件所在目录
+        vnpy_root = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '..', '..'))
+        self.write_log(f'项目所在目录:{vnpy_root}')
+        self.bar_data_folder = os.path.abspath(os.path.join(vnpy_root, 'bar_data'))
+        if os.path.exists(self.bar_data_folder):
+            SSE_folder = os.path.abspath(os.path.join(vnpy_root, 'bar_data', 'SSE'))
+            if os.path.exists(SSE_folder):
+                self.write_log(f'上交所bar数据目录:{SSE_folder}')
+            else:
+                self.write_error(f'不存在上交所数据目录:{SSE_folder}')
+
+            SZSE_folder = os.path.abspath(os.path.join(vnpy_root, 'bar_data', 'SZSE'))
+            if os.path.exists(SZSE_folder):
+                self.write_log(f'深交所bar数据目录:{SZSE_folder}')
+            else:
+                self.write_error(f'不存在深交所数据目录:{SZSE_folder}')
+        else:
+            self.write_error(f'不存在bar数据目录:{self.bar_data_folder}')
+            self.bar_data_folder = None
+
+    def get_all_vt_symbols(self, exchange: Exchange = None, stock_types: List[StockType] = [StockType.STOCK]):
+        """
+        获取所有股票列表
+        :param exchange: 交易所过滤器
+        :param stock_types: 合约类型：stock_cn, index_cn,etf_cn,bond_cn,cb_cn
+        :return:
+        """
+        vt_symbols = []
+        if len(stock_types) > 0:
+            stock_type_values = [s.value for s in stock_types]
+        else:
+            stock_type_values = []
+        for symbol_marketid, info in self.symbol_dict.items():
+
+            if exchange:
+                if info.get('exchange', None) != exchange.value:
+                    continue
+
+            if len(stock_type_values) > 0:
+                if info.get('type', None) not in stock_type_values:
+                    continue
+
+            vt_symbols.append('{}.{}'.format(info.get('code'), info.get('exchange')))
+
+        return vt_symbols
+
+    def write_log(self, msg: str, strategy_name: str = '', level: int = logging.INFO):
+        """
+        Create cta engine log event.
+        """
+        if self.event_log:
+            # 推送至全局CTA_LOG Event
+            log = LogData(msg=f"{strategy_name}: {msg}" if strategy_name else msg,
+                          gateway_name="Screener",
+                          level=level)
+            event = Event(type=EVENT_SCR, data=log)
+            self.event_engine.put(event)
+
+        # 保存单独的策略日志
+        if strategy_name:
+            strategy_logger = self.strategy_loggers.get(strategy_name, None)
+            if not strategy_logger:
+                log_path = get_folder_path('log')
+                log_filename = str(log_path.joinpath(str(strategy_name)))
+                print(u'create logger:{}'.format(log_filename))
+                self.strategy_loggers[strategy_name] = setup_logger(file_name=log_filename,
+                                                                    name=str(strategy_name))
+                strategy_logger = self.strategy_loggers.get(strategy_name)
+            if strategy_logger:
+                strategy_logger.log(level, msg)
+        else:
+            if self.logger:
+                self.logger.log(level, msg)
+
+        # 如果日志数据异常，错误和告警，输出至sys.stderr
+        if level in [logging.CRITICAL, logging.ERROR, logging.WARNING]:
+            print(f"{strategy_name}: {msg}" if strategy_name else msg, file=sys.stderr)
+
+    def write_error(self, msg: str, strategy_name: str = '', level: int = logging.ERROR):
+        """写入错误日志"""
+        self.write_log(msg=msg, strategy_name=strategy_name, level=level)
+
+    @lru_cache()
+    def get_data_path(self):
+        data_path = os.path.abspath(os.path.join(TRADER_DIR, 'data'))
+        return data_path
+
+    @lru_cache()
+    def get_logs_path(self):
+        log_path = os.path.abspath(os.path.join(TRADER_DIR, 'log'))
+        return log_path
+
+    @lru_cache()
+    def get_price_tick(self, vt_symbol: str):
+        """查询价格最小跳动"""
+        contract = self.main_engine.get_contract(vt_symbol)
+        if contract is None:
+            self.write_error(f'查询不到{vt_symbol}合约信息，缺省使用0.01作为价格跳动')
+            return 0.01
+
+        return contract.pricetick
+
+    @lru_cache()
+    def get_name(self, vt_symbol: str):
+        """查询合约的name"""
+        contract = self.main_engine.get_contract(vt_symbol)
+        if contract is None:
+            symbol_info = self.symbol_dict.get(vt_symbol, None)
+            if symbol_info:
+                name = symbol_info.get('name', None)
+                if name:
+                    return name
+            self.write_error(f'查询不到{vt_symbol}合约信息')
+            return vt_symbol
+        return contract.name
+
+    def get_bars(
+            self,
+            vt_symbol: str,
+            days: int,
+            interval: Interval,
+            interval_num: int = 1
+    ):
+        """获取历史记录"""
+        symbol, exchange = extract_vt_symbol(vt_symbol)
+        end = datetime.now()
+        start = end - timedelta(days)
+        bars = []
+
+        # 检查股票代码
+        if vt_symbol not in self.symbol_dict:
+            self.write_error(f'{vt_symbol}不在基础配置股票信息中')
+            return bars
+
+        # 检查数据文件目录
+        if not self.bar_data_folder:
+            self.write_error(f'没有bar数据目录')
+            return bars
+        # 按照交易所的存放目录
+        bar_file_folder = os.path.abspath(os.path.join(self.bar_data_folder, f'{exchange.value}'))
+
+        resample_min = False
+        resample_hour = False
+        resample_day = False
+        file_interval_num = 1
+        # 只有1,5,15,30分钟，日线数据
+        if interval == Interval.MINUTE:
+            # 如果存在相应的分钟文件，直接读取
+            bar_file_path = os.path.abspath(os.path.join(bar_file_folder, f'{symbol}_{interval_num}m.csv'))
+            if interval_num in [1, 5, 15, 30] and os.path.exists(bar_file_path):
+                file_interval_num = interval
+            # 需要resample
+            else:
+                resample_min = True
+                if interval_num > 5:
+                    file_interval_num = 5
+
+        elif interval == Interval.HOUR:
+            file_interval_num = 5
+            resample_hour = True
+            bar_file_path = os.path.abspath(os.path.join(bar_file_folder, f'{symbol}_{file_interval_num}m.csv'))
+        elif interval == Interval.DAILY:
+            bar_file_path = os.path.abspath(os.path.join(bar_file_folder, f'{symbol}_{interval_num}d.csv'))
+            if not os.path.exists(bar_file_path):
+                file_interval_num = 5
+                resample_day = True
+                bar_file_path = os.path.abspath(os.path.join(bar_file_folder, f'{symbol}_{file_interval_num}m.csv'))
+        else:
+            self.write_error(f'目前仅支持分钟,小时，日线数据')
+            return bars
+
+        bar_interval_seconds = interval_num * 60
+
+        if not os.path.exists(bar_file_path):
+            self.write_error(f'没有bar数据文件：{bar_file_path}')
+            return bars
+
+        try:
+            data_types = {
+                "datetime": str,
+                "open": float,
+                "high": float,
+                "low": float,
+                "close": float,
+                "volume": float,
+                "amount": float,
+                "symbol": str,
+                "trading_day": str,
+                "date": str,
+                "time": str
+            }
+
+            symbol_df = None
+            qfq_bar_file_path = bar_file_path.replace('.csv', '_qfq.csv')
+            use_qfq_file = False
+            last_qfq_dt = get_csv_last_dt(qfq_bar_file_path)
+            if last_qfq_dt is not None:
+                last_dt = get_csv_last_dt(bar_file_path)
+
+                if last_qfq_dt == last_dt:
+                    use_qfq_file = True
+
+            if use_qfq_file:
+                self.write_log(f'使用前复权文件:{qfq_bar_file_path}')
+                symbol_df = pd.read_csv(qfq_bar_file_path, dtype=data_types)
+            else:
+                # 加载csv文件 =》 dateframe
+                self.write_log(f'使用未复权文件:{bar_file_path}')
+                symbol_df = pd.read_csv(bar_file_path, dtype=data_types)
+
+            # 转换时间，str =》 datetime
+            symbol_df["datetime"] = pd.to_datetime(symbol_df["datetime"], format="%Y-%m-%d %H:%M:%S")
+            # 设置时间为索引
+            symbol_df = symbol_df.set_index("datetime")
+
+            # 裁剪数据
+            symbol_df = symbol_df.loc[start:end]
+
+            if resample_day:
+                self.write_log(f'{vt_symbol} resample:{file_interval_num}m => {interval}day')
+                symbol_df = self.resample_bars(df=symbol_df, to_day=True)
+            elif resample_hour:
+                self.write_log(f'{vt_symbol} resample:{file_interval_num}m => {interval}hour')
+                symbol_df = self.resample_bars(df=symbol_df, x_hour=interval_num)
+            elif resample_min:
+                self.write_log(f'{vt_symbol} resample:{file_interval_num}m => {interval}m')
+                symbol_df = self.resample_bars(df=symbol_df, x_min=interval_num)
+
+            if len(symbol_df) == 0:
+                return bars
+
+            if not use_qfq_file:
+                # 复权转换
+                adj_list = self.adjust_factor_dict.get(vt_symbol, [])
+                # 按照结束日期，裁剪复权记录
+                adj_list = [row for row in adj_list if
+                            row['dividOperateDate'].replace('-', '') <= end.strftime('%Y%m%d')]
+
+                if len(adj_list) > 0:
+                    self.write_log(f'需要对{vt_symbol}进行前复权处理')
+                    for row in adj_list:
+                        row.update({'dividOperateDate': row.get('dividOperateDate')[:10] + ' 09:30:00'})
+                    # list -> dataframe, 转换复权日期格式
+                    adj_data = pd.DataFrame(adj_list)
+                    adj_data["dividOperateDate"] = pd.to_datetime(adj_data["dividOperateDate"],
+                                                                  format="%Y-%m-%d %H:%M:%S")
+                    adj_data = adj_data.set_index("dividOperateDate")
+                    # 调用转换方法，对open,high,low,close, volume进行复权, fore, 前复权， 其他，后复权
+                    symbol_df = stock_to_adj(symbol_df, adj_data, adj_type='fore')
+
+            for dt, bar_data in symbol_df.iterrows():
+                bar_datetime = dt  # - timedelta(seconds=bar_interval_seconds)
+
+                bar = BarData(
+                    gateway_name='backtesting',
+                    symbol=symbol,
+                    exchange=exchange,
+                    datetime=bar_datetime
+                )
+                if 'open' in bar_data:
+                    bar.open_price = float(bar_data['open'])
+                    bar.close_price = float(bar_data['close'])
+                    bar.high_price = float(bar_data['high'])
+                    bar.low_price = float(bar_data['low'])
+                else:
+                    bar.open_price = float(bar_data['open_price'])
+                    bar.close_price = float(bar_data['close_price'])
+                    bar.high_price = float(bar_data['high_price'])
+                    bar.low_price = float(bar_data['low_price'])
+
+                bar.volume = int(bar_data['volume']) if not np.isnan(bar_data['volume']) else 0
+                bar.date = dt.strftime('%Y-%m-%d')
+                bar.time = dt.strftime('%H:%M:%S')
+                str_td = str(bar_data.get('trading_day', ''))
+                if len(str_td) == 8:
+                    bar.trading_day = str_td[0:4] + '-' + str_td[4:6] + '-' + str_td[6:8]
+                else:
+                    bar.trading_day = bar.date
+
+                bars.append(bar)
+
+        except Exception as ex:
+            self.write_error(u'回测时读取{} csv文件{}失败:{}'.format(vt_symbol, bar_file_path, ex))
+            self.write_error(traceback.format_exc())
+            return bars
+
+        return bars
+
+    def resample_bars(self, df, x_min=None, x_hour=None, to_day=False):
+        """
+        重建x分钟K线（或日线）
+        :param df: 输入分钟数
+        :param x_min: 5, 15, 30, 60
+        :param x_hour: 1, 2, 3, 4
+        :param include_day: 重建日线, True得时候，不会重建分钟数
+        :return:
+        """
+        # 设置df数据中每列的规则
+        ohlc_rule = {
+            'open': 'first',  # open列：序列中第一个的值
+            'high': 'max',  # high列：序列中最大的值
+            'low': 'min',  # low列：序列中最小的值
+            'close': 'last',  # close列：序列中最后一个的值
+            'volume': 'sum',  # volume列：将所有序列里的volume值作和
+            'amount': 'sum',  # amount列：将所有序列里的amount值作和
+            "symbol": 'first',
+            "trading_date": 'first',
+            "date": 'first',
+            "time": 'first'
+        }
+
+        if isinstance(x_min, int) and not to_day:
+            # 合成x分钟K线并删除为空的行 参数 closed：left类似向上取值既 09：30的k线数据是包含09：30-09：35之间的数据
+            df_target = df.resample(f'{x_min}min', closed='left', label='left').agg(ohlc_rule).dropna(axis=0,
+                                                                                                      how='any')
+            return df_target
+        if isinstance(x_hour, int) and not to_day:
+            # 合成x小时K线并删除为空的行 参数 closed：left类似向上取值既 09：30的k线数据是包含09：30-09：35之间的数据
+            df_target = df.resample(f'{x_hour}hour', closed='left', label='left').agg(ohlc_rule).dropna(axis=0,
+                                                                                                        how='any')
+            return df_target
+
+        if to_day:
+            # 合成x分钟K线并删除为空的行 参数 closed：left类似向上取值既 09：30的k线数据是包含09：30-09：35之间的数据
+            df_target = df.resample(f'D', closed='left', label='left').agg(ohlc_rule).dropna(axis=0, how='any')
+            return df_target
+
+        return df
+
+    def get_adjust_factor(self, vt_symbol, check_date=None):
+        """
+        获取[check_date前]除权因子
+        :param vt_symbol:
+        :param check_date: 某一指定日期
+        :return:
+        """
+        stock_adjust_factor_list = self.adjust_factor_dict.get(vt_symbol, [])
+        if len(stock_adjust_factor_list) == 0:
+            return None
+        stock_adjust_factor_list.reverse()
+        if check_date is None:
+            check_date = datetime.now().strftime('%Y-%m-%d')
+
+        for d in stock_adjust_factor_list:
+            if d.get("dividOperateDate","") < check_date:
+                return d
+        return None
+
+    def register_event(self):
+        """
+        注册事件
+        :return:
+        """
+        pass
+
+    def register_funcs(self):
+        """
+        register the funcs to main_engine
+        :return:
+        """
+        self.main_engine.get_all_completed_status = self.get_all_completed_status
+
+    def init_engine(self):
+        """
+        """
+        self.register_event()
+        self.register_funcs()
+
+        self.load_strategy_class()
+        self.load_strategy_setting()
+
+        self.write_log("CTA策略引擎初始化成功")
+
+    def load_strategy_class(self):
+        """
+        Load strategy class from source code.
+        """
+        # 加载 vnpy/app/cta_strategy_pro/strategies的所有策略
+        path1 = os.path.abspath(os.path.join(os.path.dirname(__file__), "strategies"))
+        self.load_strategy_class_from_folder(
+            path1, "vnpy.app.stock_screener.strategies")
+
+    def load_strategy_class_from_folder(self, path: str, module_name: str = ""):
+        """
+        Load strategy class from certain folder.
+        """
+        for dirpath, dirnames, filenames in os.walk(path):
+            for filename in filenames:
+                if filename.endswith(".py"):
+                    strategy_module_name = ".".join(
+                        [module_name, filename.replace(".py", "")])
+                elif filename.endswith(".pyd"):
+                    strategy_module_name = ".".join(
+                        [module_name, filename.split(".")[0]])
+                elif filename.endswith(".so"):
+                    strategy_module_name = ".".join(
+                        [module_name, filename.split(".")[0]])
+                else:
+                    continue
+                self.load_strategy_class_from_module(strategy_module_name)
+
+    def load_strategy_class_from_module(self, module_name: str):
+        """
+        Load/Reload strategy class from module file.
+        """
+        try:
+            module = importlib.import_module(module_name)
+
+            for name in dir(module):
+                value = getattr(module, name)
+                if (isinstance(value, type) and issubclass(value, ScreenerTemplate) and value is not ScreenerTemplate):
+                    class_name = value.__name__
+                    if class_name not in self.classes:
+                        self.write_log(f"加载策略类{module_name}.{class_name}")
+                    else:
+                        self.write_log(f"更新策略类{module_name}.{class_name}")
+                    self.classes[class_name] = value
+                    self.class_module_map[class_name] = module_name
+            return True
+        except:  # noqa
+            msg = f"策略文件{module_name}加载失败，触发异常：\n{traceback.format_exc()}"
+            self.write_log(msg=msg, level=logging.CRITICAL)
+            return False
+
+    def load_strategy_setting(self):
+        """
+        Load setting file.
+        """
+
+        # 读取策略得配置
+        self.strategy_setting = load_json(self.setting_filename)
+
+        for strategy_name, strategy_config in self.strategy_setting.items():
+            self.add_strategy(
+                class_name=strategy_config["class_name"],
+                strategy_name=strategy_name,
+                setting=strategy_config["setting"],
+                auto_init=strategy_config.get('auto_init', False),
+                auto_start=strategy_config.get('auto_start', False)
+            )
+
+    def update_strategy_setting(self, strategy_name: str, setting: dict, auto_init: bool = False,
+                                auto_start: bool = False):
+        """
+        Update setting file.
+        """
+        strategy = self.strategies[strategy_name]
+        # 原配置
+        old_config = self.strategy_setting.get('strategy_name', {})
+        new_config = {
+            "class_name": strategy.__class__.__name__,
+            "auto_init": auto_init,
+            "auto_start": auto_start,
+            "setting": setting
+        }
+
+        if old_config:
+            self.write_log(f'{strategy_name} 配置变更:\n{old_config} \n=> \n{new_config}')
+
+        self.strategy_setting[strategy_name] = new_config
+
+        sorted_setting = OrderedDict()
+        for k in sorted(self.strategy_setting.keys()):
+            sorted_setting.update({k: self.strategy_setting.get(k)})
+
+        save_json(self.setting_filename, sorted_setting)
+
+    def remove_strategy_setting(self, strategy_name: str):
+        """
+        Update setting file.
+        """
+        if strategy_name not in self.strategy_setting:
+            return
+        self.write_log(f'移除CTA引擎{strategy_name}的配置')
+        self.strategy_setting.pop(strategy_name)
+        sorted_setting = OrderedDict()
+        for k in sorted(self.strategy_setting.keys()):
+            sorted_setting.update({k: self.strategy_setting.get(k)})
+
+        save_json(self.setting_filename, sorted_setting)
+
+    def call_strategy_func(
+            self, strategy: ScreenerTemplate, func: Callable, params: Any = None
+    ):
+        """
+        Call function of a strategy and catch any exception raised.
+        """
+        try:
+            if params:
+                func(params)
+            else:
+                func()
+        except Exception:
+            strategy.trading = False
+            strategy.inited = False
+
+            msg = f"触发异常已停止\n{traceback.format_exc()}"
+            self.write_log(msg=msg,
+                           strategy_name=strategy.strategy_name,
+                           level=logging.CRITICAL)
+            self.send_wechat(msg)
+
+    def add_strategy(self,
+                     class_name: str,
+                     strategy_name: str,
+                     setting: dict,
+                     auto_init: bool = False,
+                     auto_start: bool = False):
+        """
+        添加选股策略
+        :return:
+        """
+
+        if strategy_name in self.strategies:
+            msg = f"创建选股策略失败，存在重名{strategy_name}"
+            self.write_log(msg=msg,
+                           level=logging.CRITICAL)
+            return False, msg
+
+        strategy_class = self.classes.get(class_name, None)
+        if not strategy_class:
+            msg = f"创建选股策略失败，找不到策略类{class_name}"
+            self.write_log(msg=msg,
+                           level=logging.CRITICAL)
+            return False, msg
+
+        self.write_log(f'开始添加选股策略类{class_name}，实例名:{strategy_name}')
+        strategy = strategy_class(self, strategy_name, setting)
+        self.strategies[strategy_name] = strategy
+
+        # Update to setting file.
+        self.update_strategy_setting(strategy_name, setting, auto_init, auto_start)
+
+        # 判断设置中是否由自动初始化和自动启动项目
+        if auto_init:
+            self.init_strategy(strategy_name, auto_start=auto_start)
+
+        return True, f'成功添加{strategy_name}'
+
+    def init_strategy(self, strategy_name: str, auto_start: bool = False):
+        """
+        初始化选股策略
+        :return:
+        """
+        task = self.thread_executor.submit(self._init_strategy, strategy_name, auto_start)
+        self.thread_tasks.append(task)
+
+    def _init_strategy(self, strategy_name: str, auto_start: bool = False):
+        """
+        Init strategies in queue.
+        """
+        strategy = self.strategies[strategy_name]
+
+        if strategy.inited:
+            self.write_error(f"{strategy_name}已经完成初始化，禁止重复操作")
+            return
+
+        self.write_log(f"{strategy_name}开始执行初始化")
+
+        # Call on_init function of strategy
+        self.call_strategy_func(strategy, strategy.on_init)
+
+        # Put event to update init completed status.
+        strategy.inited = True
+        self.write_log(f"{strategy_name}初始化完成")
+
+        # 初始化后，自动启动策略交易
+        if auto_start:
+            self.start_strategy(strategy_name)
+
+    def start_strategy(self, strategy_name: str):
+        """
+        启动选股策略
+        :return:
+        """
+        strategy = self.strategies[strategy_name]
+        if not strategy.inited:
+            msg = f"策略{strategy.strategy_name}启动失败，请先初始化"
+            self.write_error(msg)
+            return False, msg
+
+        if strategy.running:
+            msg = f"{strategy_name}已经启动，请勿重复操作"
+            self.write_log(msg)
+            return False, msg
+
+        self.call_strategy_func(strategy, strategy.on_start)
+        strategy.running = True
+
+        return True, f'成功启动选股策略{strategy_name}'
+
+    def stop_strategy(self, strategy_name):
+        """
+        停止选股策略执行
+        :return:
+        """
+        pass
+
+    def get_all_completed_status(self):
+        """检查所有选股是否运行完毕"""
+        for strategy in self.strategies.values():
+            if not strategy.completed:
+                return False
+
+        return True
+
+    def send_wechat(self, msg: str, strategy: ScreenerTemplate = None):
+        """
+        send wechat message to default receiver
+        :param msg:
+        :param strategy:
+        :return:
+        """
+        if strategy:
+            subject = f"{strategy.strategy_name}"
+        else:
+            subject = "选股引擎"
+
+        send_wx_msg(content=f'{subject}:{msg}')
diff --git a/vnpy/app/stock_screener/strategies/__init__.py b/vnpy/app/stock_screener/strategies/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/vnpy/app/stock_screener/template.py b/vnpy/app/stock_screener/template.py
new file mode 100644
index 00000000..24cc9c10
--- /dev/null
+++ b/vnpy/app/stock_screener/template.py
@@ -0,0 +1,168 @@
+""""""
+import os
+import bz2
+import pickle
+import traceback
+import zlib
+
+from abc import ABC
+from copy import copy, deepcopy
+from typing import Any, Callable
+from logging import INFO, ERROR
+from datetime import datetime, timedelta
+from vnpy.trader.constant import Interval, Direction, Offset, Status, OrderType, Color, Exchange
+from vnpy.trader.object import BarData, TickData, OrderData, TradeData
+from vnpy.trader.utility import virtual, append_data, extract_vt_symbol, get_underlying_symbol
+from vnpy.component.cta_grid_trade import CtaGrid, CtaGridTrade, LOCK_GRID
+
+
+class ScreenerTemplate(ABC):
+    """选股策略模板"""
+    author = ""
+    parameters = []  # 选股参数
+    variables = []  # 选股运行变量
+    results = []  # 选股结果
+
+    def __init__(
+            self,
+            engine: Any,
+            strategy_name: str,
+            setting: dict,
+    ):
+        self.engine = engine
+        self.strategy_name = strategy_name
+        self.inited = False  # 是否初始化完毕
+        self.running = False  # 是否开始执行选股
+        self.completed = False  # 是否已经执行完毕
+
+        self.klines = {}  # 所有K线
+
+        self.update_setting(setting)
+
+    def update_setting(self, setting: dict):
+        """
+        Update strategy parameter wtih value in setting dict.
+        """
+        for name in self.parameters:
+            if name in setting:
+                setattr(self, name, setting[name])
+
+    def write_log(self, msg: str, level: int = INFO):
+        """
+        Write a log message.
+        """
+        self.engine.write_log(msg=msg, strategy_name=self.strategy_name, level=level)
+
+    def write_error(self, msg: str):
+        """write error log message"""
+        self.write_log(msg=msg, level=ERROR)
+
+    @virtual
+    def on_timer(self):
+        pass
+
+    @virtual
+    def on_init(self):
+        """
+        Callback when strategy is inited.
+        """
+        pass
+
+    @virtual
+    def on_start(self):
+        """
+        Callback when strategy is started.
+        """
+        pass
+
+    def check_adjust(self, vt_symbol):
+        """
+        检查股票的最新除权时间，是否在一周内
+        :param vt_symbol:
+        :return: True: 一周内没有发生除权； False：一周内发生过除权
+        """
+        last_adjust_factor = self.engine.get_adjust_factor(vt_symbol)
+        if last_adjust_factor is None:
+            return True
+        last_adjust_date = last_adjust_factor.get('dividOperateDate', None)
+        # 最后在除权出息日，发生在一周内
+        if last_adjust_date and (datetime.now() - timedelta(days=7)).strftime('%Y-%m-%d') <= last_adjust_date:
+            self.write_log(
+                '{}[{}]发生除权除息，日期:{}'.format(vt_symbol, last_adjust_factor.get('name'), last_adjust_date))
+            return False
+
+        return True
+
+    def save_klines_to_cache(self, symbol, kline_names: list = []):
+        """
+        保存K线数据到缓存
+        :param kline_names: 一般为self.klines的keys
+        :return:
+        """
+        if len(kline_names) == 0:
+            kline_names = [s for s in list(self.klines.keys()) if s.startswith(symbol)]
+
+        # 获取保存路径
+        save_path = os.path.abspath(os.path.join(self.engine.get_data_path(), 'klines'))
+        if not os.path.exists(save_path):
+            os.makedirs(save_path)
+
+        # 保存缓存的文件名（考虑到超多得股票，根据每个合约进行拆分）
+        file_name = os.path.abspath(os.path.join(save_path, f'{self.strategy_name}_{symbol}_klines.pkb2'))
+        with bz2.BZ2File(file_name, 'wb') as f:
+            klines = {}
+            for kline_name in kline_names:
+                kline = self.klines.get(kline_name, None)
+                # if kline:
+                #    kline.strategy = None
+                #    kline.cb_on_bar = None
+                klines.update({kline_name: kline})
+            pickle.dump(klines, f)
+
+    def load_klines_from_cache(self, symbol, kline_names: list = []):
+        """
+        从缓存加载K线数据
+        :param kline_names:
+        :return:
+        """
+        if len(kline_names) == 0:
+            kline_names = list(self.klines.keys())
+
+        # 获取保存路径
+        save_path = os.path.abspath(os.path.join(self.engine.get_data_path(), 'klines'))
+        # 根据策略名称+股票合约进行读取
+        file_name = os.path.abspath(os.path.join(save_path, f'{self.strategy_name}_{symbol}_klines.pkb2'))
+        try:
+            last_bar_dt = None
+            with bz2.BZ2File(file_name, 'rb') as f:
+                klines = pickle.load(f)
+                # 逐一恢复K线
+                for kline_name in kline_names:
+                    # 缓存的k线实例
+                    cache_kline = klines.get(kline_name, None)
+                    # 当前策略实例的K线实例
+                    strategy_kline = self.klines.get(kline_name, None)
+
+                    if cache_kline and strategy_kline:
+                        # 临时保存当前的回调函数
+                        cb_on_bar = strategy_kline.cb_on_bar
+                        # 缓存实例数据 =》 当前实例数据
+                        strategy_kline.__dict__.update(cache_kline.__dict__)
+
+                        # 所有K线的最后时间
+                        if last_bar_dt and strategy_kline.cur_datetime:
+                            last_bar_dt = max(last_bar_dt, strategy_kline.cur_datetime)
+                        else:
+                            last_bar_dt = strategy_kline.cur_datetime
+
+                        # 重新绑定k线策略与on_bar回调函数
+                        strategy_kline.strategy = self
+                        strategy_kline.cb_on_bar = cb_on_bar
+
+                        self.write_log(f'恢复{kline_name}缓存数据,最新bar结束时间:{last_bar_dt}')
+
+                self.write_log(u'加载缓存k线数据完毕')
+                return last_bar_dt
+        except Exception as ex:
+            self.write_error(f'加载缓存K线数据失败:{str(ex)}')
+        return None
diff --git a/vnpy/app/stock_screener/选股应用.md b/vnpy/app/stock_screener/选股应用.md
new file mode 100644
index 00000000..9079ac54
--- /dev/null
+++ b/vnpy/app/stock_screener/选股应用.md
@@ -0,0 +1,15 @@
+选股
+
+缠论三买选股
+    
+    1、选择股票池
+    
+    
+    2、加载股票信息
+       -股票除权信息
+       -股票k线缓存(pkb2)
+       -更新股票k线。发生除权时，重新生成K线
+       
+    
+    3、更新计算股票是否存在三买机会
+        -更新计算结果