diff --git a/packages/shared/config/constant.ts b/packages/shared/config/constant.ts
index 0b6234f0..c39b1370 100644
--- a/packages/shared/config/constant.ts
+++ b/packages/shared/config/constant.ts
@@ -1,7 +1,8 @@
 export const imageExts = ['.jpg', '.jpeg', '.png', '.gif', '.bmp', '.webp']
 export const videoExts = ['.mp4', '.avi', '.mov', '.wmv', '.flv', '.mkv']
 export const audioExts = ['.mp3', '.wav', '.ogg', '.flac', '.aac']
-export const documentExts = ['.pdf', '.docx', '.pptx', '.xlsx', '.odt', '.odp', '.ods', '.epub']
+export const documentExts = ['.pdf', '.docx', '.pptx', '.xlsx', '.odt', '.odp', '.ods']
+export const bookExts = ['.epub']
 export const textExts = [
   '.txt', // 普通文本文件
   '.md', // Markdown 文件
diff --git a/src/renderer/src/pages/knowledge/KnowledgeContent.tsx b/src/renderer/src/pages/knowledge/KnowledgeContent.tsx
index d85ae1f7..41bda2a9 100644
--- a/src/renderer/src/pages/knowledge/KnowledgeContent.tsx
+++ b/src/renderer/src/pages/knowledge/KnowledgeContent.tsx
@@ -18,7 +18,7 @@ import { useKnowledge } from '@renderer/hooks/useKnowledge'
 import FileManager from '@renderer/services/FileManager'
 import { getProviderName } from '@renderer/services/ProviderService'
 import { FileType, FileTypes, KnowledgeBase } from '@renderer/types'
-import { documentExts, textExts } from '@shared/config/constant'
+import { bookExts, documentExts, textExts } from '@shared/config/constant'
 import { Alert, Button, Card, Divider, message, Tag, Tooltip, Typography, Upload } from 'antd'
 import { FC } from 'react'
 import { useTranslation } from 'react-i18next'
@@ -35,7 +35,7 @@ interface KnowledgeContentProps {
   selectedBase: KnowledgeBase
 }
 
-const fileTypes = [...documentExts, ...textExts]
+const fileTypes = [...bookExts, ...documentExts, ...textExts]
 const KnowledgeContent: FC<KnowledgeContentProps> = ({ selectedBase }) => {
   const { t } = useTranslation()
 
@@ -217,7 +217,7 @@ const KnowledgeContent: FC<KnowledgeContentProps> = ({ selectedBase }) => {
           style={{ marginTop: 10, background: 'transparent' }}>
           <p className="ant-upload-text">{t('knowledge.drag_file')}</p>
           <p className="ant-upload-hint">
-            {t('knowledge.file_hint', { file_types: fileTypes.slice(0, 5).join(', ').replaceAll('.', '') })}
+            {t('knowledge.file_hint', { file_types: fileTypes.slice(0, 6).join(', ').replaceAll('.', '') })}
           </p>
         </Dragger>
       </FileSection>