diff --git a/lua/app/ui/common/common_exchange_ui.lua b/lua/app/ui/common/common_exchange_ui.lua
index 2db735ce..e9ec3202 100644
--- a/lua/app/ui/common/common_exchange_ui.lua
+++ b/lua/app/ui/common/common_exchange_ui.lua
@@ -19,9 +19,9 @@ function CommonExchangeUI:ctor(params)
     local num = DataManager.BagData.ItemData:getItemNumById(costId)
     local maxBuyCount = num // costNum
     self.remainNum = math.min(self.remainNum, maxBuyCount)
-    if self.remainNum <= 0 then
-        self.remainNum = 1
-    end
+    -- if self.remainNum <= 0 then
+    --     self.remainNum = 1
+    -- end
 end
 
 function CommonExchangeUI:getPrefabPath()
@@ -75,6 +75,10 @@ end
 function CommonExchangeUI:_addListeners()
     local uiMap = self.root:genAllChildren()
     uiMap["exchange_ui.bg.ok_btn"]:addClickListener(function()
+        if self.defaultNum <= 0 then
+            return
+        end
+
         if self.callback then
             self.callback(self.defaultNum)
         end