diff --git a/app/Traits/UploadTrait.php b/app/Traits/UploadTrait.php
index 074d963..4a47535 100644
--- a/app/Traits/UploadTrait.php
+++ b/app/Traits/UploadTrait.php
@@ -182,6 +182,10 @@ trait UploadTrait
         $partNumberList = Arr::pluck($partList, 'partNumber');
         
         if(max($partNumberList) === count($partNumberList)){
+            //判断是否已存在同名文件，进行删除
+            if(Storage::disk(Admin::config('admin.upload.disk'))->exists($realPath)){
+                $realPath = 'chunk/(1)'.$fileName;
+            }
             for($i = 1; $i<=count($partNumberList); $i++){
                 $_file = Storage::disk(Admin::config('admin.upload.disk'))->get($basePath.'/'.$fileName.'_'.$i);
                 Storage::disk(Admin::config('admin.upload.disk'))->append($realPath, $_file, null);