diff --git a/app/admin/models/file.go b/app/admin/models/file.go
index 751cf41..9566bce 100644
--- a/app/admin/models/file.go
+++ b/app/admin/models/file.go
@@ -618,7 +618,7 @@ func hasDuplicateStore(sheetCols [][]string) (string, bool) {
 	storeMap := make(map[string]struct{})
 	var storeName string
 
-	for row := 1; row < len(sheetCols); row++ {
+	for row := 1; row < len(sheetCols[4]); row++ {
 		// 获取当前行的门店名称
 		currentStore := sheetCols[4][row] // 第5列门店名称