diff --git a/web/src/components/Chat/ChatInput.tsx b/web/src/components/Chat/ChatInput.tsx
index 49fb65d2..0e34561a 100644
--- a/web/src/components/Chat/ChatInput.tsx
+++ b/web/src/components/Chat/ChatInput.tsx
@@ -2,7 +2,7 @@
  * @Author: ZhaoYing 
  * @Date: 2025-12-10 16:46:14 
  * @Last Modified by: ZhaoYing
- * @Last Modified time: 2026-03-04 18:42:49
+ * @Last Modified time: 2026-03-06 12:21:19
  */
 import { type FC, useEffect, useMemo } from 'react'
 import { Flex, Input, Form } from 'antd'
@@ -56,7 +56,7 @@ const ChatInput: FC<ChatInputProps> = ({
   const previewFileList = useMemo(() => {
     return fileList?.map(file => ({
       ...file,
-      url: file.url || (file.originFileObj ? URL.createObjectURL(file.originFileObj) : file.thumbUrl)
+      url: file.thumbUrl || file.url || (file.originFileObj ? URL.createObjectURL(file.originFileObj) : undefined)
     })) || []
   }, [fileList])
 
@@ -72,7 +72,7 @@ const ChatInput: FC<ChatInputProps> = ({
           {previewFileList.map((file) => {
             if (file.type.includes('image')) {
               return (
-                <div key={file.uid} className="rb:inline-block rb:group rb:relative rb:rounded-lg">
+                <div key={file.url || file.uid} className="rb:inline-block rb:group rb:relative rb:rounded-lg">
                   <img src={file.url} alt={file.name} className="rb:size-12! rb:rounded-lg rb:object-cover rb:cursor-pointer" />
                   <div
                     className="rb:hidden rb:group-hover:block rb:absolute rb:-right-1 rb:-top-1 rb:size-3.5 rb:cursor-pointer rb:bg-cover rb:bg-[url('@/assets/images/conversation/delete.svg')] rb:hover:bg-[url('@/assets/images/conversation/delete_hover.svg')]"
@@ -83,7 +83,7 @@ const ChatInput: FC<ChatInputProps> = ({
             }
             if (file.type.includes('video')) {
               return (
-                <div key={file.uid} className="rb:w-45 rb:h-16 rb:inline-block rb:group rb:relative rb:rounded-lg">
+                <div key={file.url || file.uid} className="rb:w-45 rb:h-16 rb:inline-block rb:group rb:relative rb:rounded-lg">
                   <video src={file.url} controls className="rb:w-45 rb:h-16 rb:rounded-lg rb:object-cover rb:cursor-pointer" />
                   <div
                     className="rb:hidden rb:group-hover:block rb:absolute rb:-right-1 rb:-top-1 rb:size-3.5 rb:cursor-pointer rb:bg-cover rb:bg-[url('@/assets/images/conversation/delete.svg')] rb:hover:bg-[url('@/assets/images/conversation/delete_hover.svg')]"
@@ -94,7 +94,7 @@ const ChatInput: FC<ChatInputProps> = ({
             }
             if (file.type.includes('audio')) {
               return (
-                <div key={file.uid} className="rb:w-45 rb:h-16 rb:inline-flex rb:items-center rb:group rb:relative rb:rounded-lg rb:bg-[#F0F3F8] rb:py-2 rb:px-2.5 rb:gap-2">
+                <div key={file.url || file.uid} className="rb:w-45 rb:h-16 rb:inline-flex rb:items-center rb:group rb:relative rb:rounded-lg rb:bg-[#F0F3F8] rb:py-2 rb:px-2.5 rb:gap-2">
                   <audio src={file.url} controls className="rb:w-45 rb:h-16" />
                   <div
                     className="rb:hidden rb:group-hover:block rb:absolute rb:-right-1 rb:-top-1 rb:size-3.5 rb:cursor-pointer rb:bg-cover rb:bg-[url('@/assets/images/conversation/delete.svg')] rb:hover:bg-[url('@/assets/images/conversation/delete_hover.svg')]"
@@ -104,7 +104,7 @@ const ChatInput: FC<ChatInputProps> = ({
               )
             }
             return (
-              <div key={file.uid} className="rb:w-45 rb:text-[12px] rb:gap-2.5 rb:flex rb:items-center rb:group rb:relative rb:rounded-lg rb:bg-[#F0F3F8] rb:py-2 rb:px-2.5">
+              <div key={file.url || file.uid} className="rb:w-45 rb:text-[12px] rb:gap-2.5 rb:flex rb:items-center rb:group rb:relative rb:rounded-lg rb:bg-[#F0F3F8] rb:py-2 rb:px-2.5">
                 {(file.type.includes('doc') || file.type.includes('docx') || file.type.includes('word') || file.type.includes('wordprocessingml.document')) && <div
                   className="rb:size-5 rb:cursor-pointer rb:bg-cover rb:bg-[url('@/assets/images/conversation/word_disabled.svg')] rb:hover:bg-[url('@/assets/images/conversation/word.svg')]"
                 ></div>}
diff --git a/web/src/views/Conversation/components/FileUpload.tsx b/web/src/views/Conversation/components/FileUpload.tsx
index 9da64cc7..b4f11b1b 100644
--- a/web/src/views/Conversation/components/FileUpload.tsx
+++ b/web/src/views/Conversation/components/FileUpload.tsx
@@ -2,7 +2,7 @@
  * @Author: ZhaoYing 
  * @Date: 2026-02-06 21:09:42 
  * @Last Modified by: ZhaoYing
- * @Last Modified time: 2026-03-05 15:09:22
+ * @Last Modified time: 2026-03-06 12:20:43
  */
 /**
  * File Upload Component
@@ -208,6 +208,7 @@ const UploadFiles = forwardRef<UploadFilesRef, UploadFilesProps>(({
     newFileList.map(file => {
       const type = (file.type && transform_file_type[file.type as keyof typeof transform_file_type]) || file.type || 'document'
       file.type = type
+      file.thumbUrl = file.thumbUrl || URL.createObjectURL(file.originFileObj as Blob)
     })
     setFileList(newFileList);
     if (onChange) {