diff --git a/examples/CtaTrading/runCtaTrading.py b/examples/CtaTrading/runCtaTrading.py
index 5d3e51ae..80149435 100644
--- a/examples/CtaTrading/runCtaTrading.py
+++ b/examples/CtaTrading/runCtaTrading.py
@@ -55,7 +55,8 @@ def runChildProcess():
     me.connect('CTP')
     le.info(u'连接CTP接口')
     
-    sleep(10)    # 等待CTP接口初始化
+    sleep(10)                       # 等待CTP接口初始化
+    me.dataEngine.saveContracts()   # 保存合约信息到文件
     
     cta = me.getApp(ctaStrategy.appName)