diff --git a/web/components/knowledge/doc-upload-form.tsx b/web/components/knowledge/doc-upload-form.tsx
index 76321a892..e32dfaa36 100644
--- a/web/components/knowledge/doc-upload-form.tsx
+++ b/web/components/knowledge/doc-upload-form.tsx
@@ -84,11 +84,18 @@ export default function DocUploadForm(props: IProps) {
     } else if (docType !== 'DOCUMENT' && !docId) {
       return message.error('Upload failed, please re-upload.');
     }
+
+    let fileList = files;
+    if (docType === 'DOCUMENT') {
+      const originFiles = Array.from(data.originFileObj.fileList);
+      fileList = fileList.filter((item: File) => originFiles.some(ofile => ofile.name === item.name));
+    }
+
     handleStepChange({
       label: 'forward',
       files:
         docType === 'DOCUMENT'
-          ? files
+          ? fileList
           : [
               {
                 name: docName,