diff --git a/vnpy/app/cta_strategy/strategies/turtle_signal_strategy.py b/vnpy/app/cta_strategy/strategies/turtle_signal_strategy.py
index aa608b95..bcbe766d 100644
--- a/vnpy/app/cta_strategy/strategies/turtle_signal_strategy.py
+++ b/vnpy/app/cta_strategy/strategies/turtle_signal_strategy.py
@@ -78,7 +78,12 @@ class TurtleSignalStrategy(CtaTemplate):
         if not self.am.inited:
             return
 
-        self.entry_up, self.entry_down = self.am.donchian(self.entry_window)
+        # Only calculates new entry channel when no position holding
+        if not self.pos:
+            self.entry_up, self.entry_down = self.am.donchian(
+                self.entry_window
+            )
+
         self.exit_up, self.exit_down = self.am.donchian(self.exit_window)
 
         if not self.pos:
@@ -92,13 +97,13 @@ class TurtleSignalStrategy(CtaTemplate):
             self.send_buy_orders(self.entry_up)
             self.send_short_orders(self.entry_down)
         elif self.pos > 0:
-            self.send_buy_orders(self.long_entry)
+            self.send_buy_orders(self.entry_up)
 
             sell_price = max(self.long_stop, self.exit_down)
             self.sell(sell_price, abs(self.pos), True)
 
         elif self.pos < 0:
-            self.send_short_orders(self.short_entry)
+            self.send_short_orders(self.entry_down)
 
             cover_price = min(self.short_stop, self.exit_up)
             self.cover(cover_price, abs(self.pos), True)