diff --git a/tests/trader/run.py b/tests/trader/run.py
index 130aa088..58a7d4a8 100644
--- a/tests/trader/run.py
+++ b/tests/trader/run.py
@@ -3,12 +3,12 @@ from vnpy.event import EventEngine
 from vnpy.trader.engine import MainEngine
 from vnpy.trader.ui import MainWindow, create_qapp
 
-from vnpy.gateway.binance import BinanceGateway
+# from vnpy.gateway.binance import BinanceGateway
 # from vnpy.gateway.bitmex import BitmexGateway
 # from vnpy.gateway.futu import FutuGateway
 # from vnpy.gateway.ib import IbGateway
 # from vnpy.gateway.ctp import CtpGateway
-# from vnpy.gateway.ctptest import CtptestGateway
+from vnpy.gateway.ctptest import CtptestGateway
 # from vnpy.gateway.femas import FemasGateway
 # from vnpy.gateway.tiger import TigerGateway
 # from vnpy.gateway.oes import OesGateway
@@ -36,10 +36,10 @@ def main():
 
     main_engine = MainEngine(event_engine)
 
-    main_engine.add_gateway(BinanceGateway)
+    # main_engine.add_gateway(BinanceGateway)
     # main_engine.add_gateway(XtpGateway)
     # main_engine.add_gateway(CtpGateway)
-    # main_engine.add_gateway(CtptestGateway)
+    main_engine.add_gateway(CtptestGateway)
     # main_engine.add_gateway(FemasGateway)
     # main_engine.add_gateway(IbGateway)
     # main_engine.add_gateway(FutuGateway)
diff --git a/vnpy/gateway/ctp/ctp_gateway.py b/vnpy/gateway/ctp/ctp_gateway.py
index 78255313..6512c41e 100644
--- a/vnpy/gateway/ctp/ctp_gateway.py
+++ b/vnpy/gateway/ctp/ctp_gateway.py
@@ -294,6 +294,7 @@ class CtpMdApi(MdApi):
             datetime=datetime.strptime(timestamp, "%Y%m%d %H:%M:%S.%f"),
             name=symbol_name_map[symbol],
             volume=data["Volume"],
+            open_interest=data["OpenInterest"],
             last_price=data["LastPrice"],
             limit_up=data["UpperLimitPrice"],
             limit_down=data["LowerLimitPrice"],
diff --git a/vnpy/trader/object.py b/vnpy/trader/object.py
index 952c0360..ca7f7e0e 100644
--- a/vnpy/trader/object.py
+++ b/vnpy/trader/object.py
@@ -36,6 +36,7 @@ class TickData(BaseData):
 
     name: str = ""
     volume: float = 0
+    open_interest: float = 0
     last_price: float = 0
     last_volume: float = 0
     limit_up: float = 0
@@ -87,6 +88,7 @@ class BarData(BaseData):
 
     interval: Interval = None
     volume: float = 0
+    open_interest: float = 0
     open_price: float = 0
     high_price: float = 0
     low_price: float = 0
diff --git a/vnpy/trader/utility.py b/vnpy/trader/utility.py
index 1843b31f..a154e175 100644
--- a/vnpy/trader/utility.py
+++ b/vnpy/trader/utility.py
@@ -177,11 +177,13 @@ class BarGenerator:
                 high_price=tick.last_price,
                 low_price=tick.last_price,
                 close_price=tick.last_price,
+                open_interest=tick.open_interest
             )
         else:
             self.bar.high_price = max(self.bar.high_price, tick.last_price)
             self.bar.low_price = min(self.bar.low_price, tick.last_price)
             self.bar.close_price = tick.last_price
+            self.bar.open_interest = tick.open_interest
             self.bar.datetime = tick.datetime
 
         if self.last_tick:
@@ -221,6 +223,7 @@ class BarGenerator:
         # Update close price/volume into window bar
         self.window_bar.close_price = bar.close_price
         self.window_bar.volume += int(bar.volume)
+        self.window_bar.open_interest = bar.open_interest
 
         # Check if window bar completed
         finished = False