diff --git a/src/dealer/customer/trading.tsx b/src/dealer/customer/trading.tsx
index 0ef4c71..2e208cb 100644
--- a/src/dealer/customer/trading.tsx
+++ b/src/dealer/customer/trading.tsx
@@ -90,9 +90,9 @@ const CustomerTrading = () => {
 
   // 搜索处理函数
   const handleSearch = (keyword: string) => {
-    if(keyword.length < 3){
+    if(keyword.length < 4){
       Taro.showToast({
-        title: '请输入至少3个字符',
+        title: '请输入至少4个字符',
         icon: 'none'
       });
       return;