diff --git a/vnpy/trader/ui/__init__.py b/vnpy/trader/ui/__init__.py
index 6e194576..4e7ba2c8 100644
--- a/vnpy/trader/ui/__init__.py
+++ b/vnpy/trader/ui/__init__.py
@@ -2,6 +2,7 @@ import ctypes
 import platform
 import sys
 import traceback
+import webbrowser
 
 import qdarkstyle
 from PyQt5 import QtGui, QtWidgets, QtCore
@@ -13,15 +14,14 @@ from ..utility import get_icon_path
 
 def excepthook(exctype, value, tb):
     """
-    Raise exception under debug mode, otherwise 
+    Raise exception under debug mode, otherwise
     show exception detail with QMessageBox.
     """
     sys.__excepthook__(exctype, value, tb)
 
     msg = "".join(traceback.format_exception(exctype, value, tb))
-    QtWidgets.QMessageBox.critical(
-        None, "Exception", msg, QtWidgets.QMessageBox.Ok
-    )
+    dialog = ExceptionDialog(msg)
+    dialog.exec_()
 
 
 def create_qapp(app_name: str = "VN Trader"):
@@ -45,3 +45,53 @@ def create_qapp(app_name: str = "VN Trader"):
         )
 
     return qapp
+
+
+class ExceptionDialog(QtWidgets.QDialog):
+    """"""
+
+    def __init__(self, msg: str):
+        """"""
+        super().__init__()
+
+        self.msg = msg
+
+        self.init_ui()
+
+    def init_ui(self):
+        """"""
+        self.setWindowTitle("触发异常")
+        self.setFixedSize(600, 600)
+
+        self.msg_edit = QtWidgets.QTextEdit()
+        self.msg_edit.setText(self.msg)
+        self.msg_edit.setReadOnly(True)
+
+        copy_button = QtWidgets.QPushButton("复制")
+        copy_button.clicked.connect(self._copy_text)
+
+        community_button = QtWidgets.QPushButton("求助")
+        community_button.clicked.connect(self._open_community)
+
+        close_button = QtWidgets.QPushButton("关闭")
+        close_button.clicked.connect(self.close)
+
+        hbox = QtWidgets.QHBoxLayout()
+        hbox.addWidget(copy_button)
+        hbox.addWidget(community_button)
+        hbox.addWidget(close_button)
+
+        vbox = QtWidgets.QVBoxLayout()
+        vbox.addWidget(self.msg_edit)
+        vbox.addLayout(hbox)
+
+        self.setLayout(vbox)
+
+    def _copy_text(self):
+        """"""
+        self.msg_edit.selectAll()
+        self.msg_edit.copy()
+
+    def _open_community(self):
+        """"""
+        webbrowser.open("https://www.vnpy.com/forum/forum/2-ti-wen-qiu-zhu")