diff --git a/package.json b/package.json
index 97adcc809c..b866ba7138 100644
--- a/package.json
+++ b/package.json
@@ -203,6 +203,7 @@
     "husky": "^9.1.7",
     "i18next": "^23.11.5",
     "iconv-lite": "^0.6.3",
+    "isbinaryfile": "5.0.4",
     "jaison": "^2.0.2",
     "jest-styled-components": "^7.2.0",
     "linguist-languages": "^8.0.0",
diff --git a/packages/shared/IpcChannel.ts b/packages/shared/IpcChannel.ts
index 20bc852e7e..56ebfb3d58 100644
--- a/packages/shared/IpcChannel.ts
+++ b/packages/shared/IpcChannel.ts
@@ -157,6 +157,7 @@ export enum IpcChannel {
   File_GetPdfInfo = 'file:getPdfInfo',
   Fs_Read = 'fs:read',
   File_OpenWithRelativePath = 'file:openWithRelativePath',
+  File_IsTextFile = 'file:isTextFile',
 
   // file service
   FileService_Upload = 'file-service:upload',
diff --git a/src/main/ipc.ts b/src/main/ipc.ts
index f094e8d580..8689ab2c3b 100644
--- a/src/main/ipc.ts
+++ b/src/main/ipc.ts
@@ -444,6 +444,7 @@ export function registerIpc(mainWindow: BrowserWindow, app: Electron.App) {
   ipcMain.handle(IpcChannel.File_Copy, fileManager.copyFile.bind(fileManager))
   ipcMain.handle(IpcChannel.File_BinaryImage, fileManager.binaryImage.bind(fileManager))
   ipcMain.handle(IpcChannel.File_OpenWithRelativePath, fileManager.openFileWithRelativePath.bind(fileManager))
+  ipcMain.handle(IpcChannel.File_IsTextFile, fileManager.isTextFile.bind(fileManager))
 
   // file service
   ipcMain.handle(IpcChannel.FileService_Upload, async (_, provider: Provider, file: FileMetadata) => {
diff --git a/src/main/services/FileStorage.ts b/src/main/services/FileStorage.ts
index f5df9ed3f7..39a16713d7 100644
--- a/src/main/services/FileStorage.ts
+++ b/src/main/services/FileStorage.ts
@@ -1,7 +1,8 @@
 import { loggerService } from '@logger'
 import { getFilesDir, getFileType, getTempDir, readTextFileWithAutoEncoding } from '@main/utils/file'
-import { documentExts, imageExts, MB } from '@shared/config/constant'
+import { documentExts, imageExts, KB, MB } from '@shared/config/constant'
 import { FileMetadata } from '@types'
+import chardet from 'chardet'
 import * as crypto from 'crypto'
 import {
   dialog,
@@ -15,6 +16,7 @@ import {
 import * as fs from 'fs'
 import { writeFileSync } from 'fs'
 import { readFile } from 'fs/promises'
+import { isBinaryFile } from 'isbinaryfile'
 import officeParser from 'officeparser'
 import * as path from 'path'
 import { PDFDocument } from 'pdf-lib'
@@ -630,6 +632,34 @@ class FileStorage {
   public getFilePathById(file: FileMetadata): string {
     return path.join(this.storageDir, file.id + file.ext)
   }
+
+  public isTextFile = async (_: Electron.IpcMainInvokeEvent, filePath: string): Promise<boolean> => {
+    try {
+      const isBinary = await isBinaryFile(filePath)
+      if (isBinary) {
+        return false
+      }
+
+      const length = 8 * KB
+      const fileHandle = await fs.promises.open(filePath, 'r')
+      const buffer = Buffer.alloc(length)
+      const { bytesRead } = await fileHandle.read(buffer, 0, length, 0)
+      await fileHandle.close()
+
+      const sampleBuffer = buffer.subarray(0, bytesRead)
+      const matches = chardet.analyse(sampleBuffer)
+
+      // 如果检测到的编码置信度较高，认为是文本文件
+      if (matches.length > 0 && matches[0].confidence > 0.8) {
+        return true
+      }
+
+      return false
+    } catch (error) {
+      logger.error('Failed to check if file is text:', error as Error)
+      return false
+    }
+  }
 }
 
 export const fileStorage = new FileStorage()
diff --git a/src/preload/index.ts b/src/preload/index.ts
index 1a630a19ee..1059826224 100644
--- a/src/preload/index.ts
+++ b/src/preload/index.ts
@@ -170,7 +170,8 @@ const api = {
     base64File: (fileId: string) => ipcRenderer.invoke(IpcChannel.File_Base64File, fileId),
     pdfInfo: (fileId: string) => ipcRenderer.invoke(IpcChannel.File_GetPdfInfo, fileId),
     getPathForFile: (file: File) => webUtils.getPathForFile(file),
-    openFileWithRelativePath: (file: FileMetadata) => ipcRenderer.invoke(IpcChannel.File_OpenWithRelativePath, file)
+    openFileWithRelativePath: (file: FileMetadata) => ipcRenderer.invoke(IpcChannel.File_OpenWithRelativePath, file),
+    isTextFile: (filePath: string): Promise<boolean> => ipcRenderer.invoke(IpcChannel.File_IsTextFile, filePath)
   },
   fs: {
     read: (pathOrUrl: string, encoding?: BufferEncoding) => ipcRenderer.invoke(IpcChannel.Fs_Read, pathOrUrl, encoding)
diff --git a/src/renderer/src/i18n/locales/en-us.json b/src/renderer/src/i18n/locales/en-us.json
index eef4f124aa..1841716293 100644
--- a/src/renderer/src/i18n/locales/en-us.json
+++ b/src/renderer/src/i18n/locales/en-us.json
@@ -322,6 +322,7 @@
       "expand": "Expand",
       "file_error": "Error processing file",
       "file_not_supported": "Model does not support this file type",
+      "file_not_supported_count": "{{count}} files are not supported",
       "generate_image": "Generate image",
       "generate_image_not_supported": "The model does not support generating images.",
       "knowledge_base": "Knowledge Base",
diff --git a/src/renderer/src/i18n/locales/ja-jp.json b/src/renderer/src/i18n/locales/ja-jp.json
index 289914cca6..5842f6b24b 100644
--- a/src/renderer/src/i18n/locales/ja-jp.json
+++ b/src/renderer/src/i18n/locales/ja-jp.json
@@ -322,6 +322,7 @@
       "expand": "展開",
       "file_error": "ファイル処理エラー",
       "file_not_supported": "モデルはこのファイルタイプをサポートしません",
+      "file_not_supported_count": "{{count}} 個のファイルはサポートされていません",
       "generate_image": "画像を生成する",
       "generate_image_not_supported": "モデルは画像の生成をサポートしていません。",
       "knowledge_base": "ナレッジベース",
diff --git a/src/renderer/src/i18n/locales/ru-ru.json b/src/renderer/src/i18n/locales/ru-ru.json
index ca219486dd..d1a8fff8e5 100644
--- a/src/renderer/src/i18n/locales/ru-ru.json
+++ b/src/renderer/src/i18n/locales/ru-ru.json
@@ -322,6 +322,7 @@
       "expand": "Развернуть",
       "file_error": "Ошибка обработки файла",
       "file_not_supported": "Модель не поддерживает этот тип файла",
+      "file_not_supported_count": "{{count}} файлов не поддерживаются",
       "generate_image": "Сгенерировать изображение",
       "generate_image_not_supported": "Модель не поддерживает генерацию изображений.",
       "knowledge_base": "База знаний",
diff --git a/src/renderer/src/i18n/locales/zh-cn.json b/src/renderer/src/i18n/locales/zh-cn.json
index ff692f3bbd..812d182c94 100644
--- a/src/renderer/src/i18n/locales/zh-cn.json
+++ b/src/renderer/src/i18n/locales/zh-cn.json
@@ -322,6 +322,7 @@
       "expand": "展开",
       "file_error": "文件处理出错",
       "file_not_supported": "模型不支持此文件类型",
+      "file_not_supported_count": "{{count}} 个文件不被支持",
       "generate_image": "生成图片",
       "generate_image_not_supported": "模型不支持生成图片",
       "knowledge_base": "知识库",
diff --git a/src/renderer/src/i18n/locales/zh-tw.json b/src/renderer/src/i18n/locales/zh-tw.json
index aef5a324dd..5b0bc186ca 100644
--- a/src/renderer/src/i18n/locales/zh-tw.json
+++ b/src/renderer/src/i18n/locales/zh-tw.json
@@ -322,6 +322,7 @@
       "expand": "展開",
       "file_error": "檔案處理錯誤",
       "file_not_supported": "模型不支援此檔案類型",
+      "file_not_supported_count": "{{count}} 個檔案不被支援",
       "generate_image": "生成圖片",
       "generate_image_not_supported": "模型不支援生成圖片",
       "knowledge_base": "知識庫",
diff --git a/src/renderer/src/i18n/translate/el-gr.json b/src/renderer/src/i18n/translate/el-gr.json
index 7e60d79b49..05c1efa2cf 100644
--- a/src/renderer/src/i18n/translate/el-gr.json
+++ b/src/renderer/src/i18n/translate/el-gr.json
@@ -322,6 +322,7 @@
       "expand": "Επεκτάση",
       "file_error": "Σφάλμα κατά την επεξεργασία του αρχείου",
       "file_not_supported": "Το μοντέλο δεν υποστηρίζει αυτό το είδος αρχείων",
+      "file_not_supported_count": "{{count}} αρχεία δεν υποστηρίζονται",
       "generate_image": "Δημιουργία εικόνας",
       "generate_image_not_supported": "Το μοντέλο δεν υποστηρίζει τη δημιουργία εικόνων",
       "knowledge_base": "Βάση γνώσεων",
diff --git a/src/renderer/src/i18n/translate/es-es.json b/src/renderer/src/i18n/translate/es-es.json
index ef4234f334..d63cda4c58 100644
--- a/src/renderer/src/i18n/translate/es-es.json
+++ b/src/renderer/src/i18n/translate/es-es.json
@@ -322,6 +322,7 @@
       "expand": "Expandir",
       "file_error": "Error al procesar el archivo",
       "file_not_supported": "El modelo no admite este tipo de archivo",
+      "file_not_supported_count": "{{count}} archivos no soportados",
       "generate_image": "Generar imagen",
       "generate_image_not_supported": "El modelo no soporta la generación de imágenes",
       "knowledge_base": "Base de conocimientos",
diff --git a/src/renderer/src/i18n/translate/fr-fr.json b/src/renderer/src/i18n/translate/fr-fr.json
index 9e2f724425..a7575df024 100644
--- a/src/renderer/src/i18n/translate/fr-fr.json
+++ b/src/renderer/src/i18n/translate/fr-fr.json
@@ -322,6 +322,7 @@
       "expand": "Développer",
       "file_error": "Erreur lors du traitement du fichier",
       "file_not_supported": "Le modèle ne prend pas en charge ce type de fichier",
+      "file_not_supported_count": "{{count}} fichiers non pris en charge",
       "generate_image": "Générer une image",
       "generate_image_not_supported": "Le modèle ne supporte pas la génération d'images",
       "knowledge_base": "Base de connaissances",
diff --git a/src/renderer/src/i18n/translate/pt-pt.json b/src/renderer/src/i18n/translate/pt-pt.json
index 9bed40be77..3234ad8215 100644
--- a/src/renderer/src/i18n/translate/pt-pt.json
+++ b/src/renderer/src/i18n/translate/pt-pt.json
@@ -322,6 +322,7 @@
       "expand": "Expandir",
       "file_error": "Erro ao processar o arquivo",
       "file_not_supported": "O modelo não suporta este tipo de arquivo",
+      "file_not_supported_count": "{{count}} arquivos não suportados",
       "generate_image": "Gerar imagem",
       "generate_image_not_supported": "Modelo não suporta geração de imagem",
       "knowledge_base": "Base de conhecimento",
diff --git a/src/renderer/src/pages/home/Inputbar/AttachmentButton.tsx b/src/renderer/src/pages/home/Inputbar/AttachmentButton.tsx
index dc439e79c7..7e6d583fc3 100644
--- a/src/renderer/src/pages/home/Inputbar/AttachmentButton.tsx
+++ b/src/renderer/src/pages/home/Inputbar/AttachmentButton.tsx
@@ -1,4 +1,5 @@
-import { FileType } from '@renderer/types'
+import { FileMetadata, FileType } from '@renderer/types'
+import { filterSupportedFiles } from '@renderer/utils/file'
 import { Tooltip } from 'antd'
 import { Paperclip } from 'lucide-react'
 import { FC, useCallback, useImperativeHandle } from 'react'
@@ -30,20 +31,39 @@ const AttachmentButton: FC<Props> = ({
   const { t } = useTranslation()
 
   const onSelectFile = useCallback(async () => {
-    const _files = await window.api.file.select({
+    // when the number of extensions is greater than 20, use *.* to avoid selecting window lag
+    const useAllFiles = extensions.length > 20
+
+    const _files: FileMetadata[] = await window.api.file.select({
       properties: ['openFile', 'multiSelections'],
       filters: [
         {
           name: 'Files',
-          extensions: extensions.map((i) => i.replace('.', ''))
+          extensions: useAllFiles ? ['*'] : extensions.map((i) => i.replace('.', ''))
         }
       ]
     })
 
     if (_files) {
-      setFiles([...files, ..._files])
+      if (!useAllFiles) {
+        setFiles([...files, ..._files])
+        return
+      }
+      const supportedFiles = await filterSupportedFiles(_files, extensions)
+      if (supportedFiles.length > 0) {
+        setFiles([...files, ...supportedFiles])
+      }
+
+      if (supportedFiles.length !== _files.length) {
+        window.message.info({
+          key: 'file_not_supported',
+          content: t('chat.input.file_not_supported_count', {
+            count: _files.length - supportedFiles.length
+          })
+        })
+      }
     }
-  }, [extensions, files, setFiles])
+  }, [extensions, files, setFiles, t])
 
   const openQuickPanel = useCallback(() => {
     onSelectFile()
diff --git a/src/renderer/src/pages/home/Inputbar/Inputbar.tsx b/src/renderer/src/pages/home/Inputbar/Inputbar.tsx
index 82a157adba..f36af1635e 100644
--- a/src/renderer/src/pages/home/Inputbar/Inputbar.tsx
+++ b/src/renderer/src/pages/home/Inputbar/Inputbar.tsx
@@ -37,7 +37,7 @@ import { setSearching } from '@renderer/store/runtime'
 import { sendMessage as _sendMessage } from '@renderer/store/thunk/messageThunk'
 import { Assistant, FileType, FileTypes, KnowledgeBase, KnowledgeItem, Model, Topic } from '@renderer/types'
 import type { MessageInputBaseParams } from '@renderer/types/newMessage'
-import { classNames, delay, formatFileSize } from '@renderer/utils'
+import { classNames, delay, filterSupportedFiles, formatFileSize } from '@renderer/utils'
 import { formatQuotedText } from '@renderer/utils/formats'
 import {
   getFilesFromDropEvent,
@@ -585,26 +585,20 @@ const Inputbar: FC<Props> = ({ assistant: _assistant, setActiveTopic, topic }) =
 
       setText(text + data)
 
-      const files = await getFilesFromDropEvent(e).catch((err) => {
+      const droppedFiles = await getFilesFromDropEvent(e).catch((err) => {
         logger.error('handleDrop:', err)
         return null
       })
 
-      if (files) {
-        let supportedFiles = 0
-
-        files.forEach((file) => {
-          if (supportedExts.includes(file.ext)) {
-            setFiles((prevFiles) => [...prevFiles, file])
-            supportedFiles++
-          }
-        })
-
-        // 如果有文件，但都不支持
-        if (files.length > 0 && supportedFiles === 0) {
+      if (droppedFiles) {
+        const supportedFiles = await filterSupportedFiles(droppedFiles, supportedExts)
+        supportedFiles.length > 0 && setFiles((prevFiles) => [...prevFiles, ...supportedFiles])
+        if (droppedFiles.length > 0 && supportedFiles.length !== droppedFiles.length) {
           window.message.info({
             key: 'file_not_supported',
-            content: t('chat.input.file_not_supported')
+            content: t('chat.input.file_not_supported_count', {
+              count: droppedFiles.length - supportedFiles.length
+            })
           })
         }
       }
diff --git a/src/renderer/src/services/FileManager.ts b/src/renderer/src/services/FileManager.ts
index f6b6945df4..4b780cfa94 100644
--- a/src/renderer/src/services/FileManager.ts
+++ b/src/renderer/src/services/FileManager.ts
@@ -132,7 +132,9 @@ class FileManager {
   }
 
   static getSafePath(file: FileMetadata) {
-    return this.isDangerFile(file) ? getFileDirectory(this.getFilePath(file)) : this.getFilePath(file)
+    // use the path from the file metadata instead
+    // this function is used to get path for files which are not in the filestorage
+    return this.isDangerFile(file) ? getFileDirectory(file.path) : file.path
   }
 
   static getFileUrl(file: FileMetadata) {
diff --git a/src/renderer/src/services/PasteService.ts b/src/renderer/src/services/PasteService.ts
index 845ec536dd..277bc9ef66 100644
--- a/src/renderer/src/services/PasteService.ts
+++ b/src/renderer/src/services/PasteService.ts
@@ -1,6 +1,6 @@
 import { loggerService } from '@logger'
 import { FileMetadata } from '@renderer/types'
-import { getFileExtension } from '@renderer/utils'
+import { getFileExtension, isSupportedFile } from '@renderer/utils'
 
 const logger = loggerService.withContext('PasteService')
 
@@ -60,6 +60,7 @@ export const handlePaste = async (
     // 2. 文件/图片粘贴（仅在无文本时处理）
     if (event.clipboardData?.files && event.clipboardData.files.length > 0) {
       event.preventDefault()
+      const extensionSet = new Set(supportExts)
       try {
         for (const file of event.clipboardData.files) {
           // 使用新的API获取文件路径
@@ -90,7 +91,7 @@ export const handlePaste = async (
           }
 
           // 有路径的情况
-          if (supportExts.includes(getFileExtension(filePath))) {
+          if (await isSupportedFile(filePath, extensionSet)) {
             const selectedFile = await window.api.file.get(filePath)
             if (selectedFile) {
               setFiles((prevFiles) => [...prevFiles, selectedFile])
diff --git a/src/renderer/src/utils/file.ts b/src/renderer/src/utils/file.ts
index 0c0f5039a6..6218e3f5c1 100644
--- a/src/renderer/src/utils/file.ts
+++ b/src/renderer/src/utils/file.ts
@@ -1,3 +1,4 @@
+import { FileMetadata } from '@renderer/types'
 import { KB, MB } from '@shared/config/constant'
 
 /**
@@ -55,3 +56,30 @@ export function removeSpecialCharactersForFileName(str: string): string {
     .replace(/[\r\n]+/g, ' ')
     .trim()
 }
+
+export async function isSupportedFile(filePath: string, supportExts: Set<string>): Promise<boolean> {
+  try {
+    if (supportExts.has(getFileExtension(filePath))) {
+      return true
+    }
+
+    if (await window.api.file.isTextFile(filePath)) {
+      return true
+    }
+
+    return false
+  } catch (error) {
+    return false
+  }
+}
+
+export async function filterSupportedFiles(files: FileMetadata[], supportExts: string[]): Promise<FileMetadata[]> {
+  const extensionSet = new Set(supportExts)
+  const validationResults = await Promise.all(
+    files.map(async (file) => ({
+      file,
+      isValid: await isSupportedFile(file.path, extensionSet)
+    }))
+  )
+  return validationResults.filter((result) => result.isValid).map((result) => result.file)
+}
diff --git a/yarn.lock b/yarn.lock
index c0950f0a4a..b9833e0cc3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8510,6 +8510,7 @@ __metadata:
     husky: "npm:^9.1.7"
     i18next: "npm:^23.11.5"
     iconv-lite: "npm:^0.6.3"
+    isbinaryfile: "npm:5.0.4"
     jaison: "npm:^2.0.2"
     jest-styled-components: "npm:^7.2.0"
     jsdom: "npm:26.1.0"
@@ -14389,6 +14390,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"isbinaryfile@npm:5.0.4, isbinaryfile@npm:^5.0.0":
+  version: 5.0.4
+  resolution: "isbinaryfile@npm:5.0.4"
+  checksum: 10c0/fea255bfae67ff4827e8dd2238d6700d4803d02b4d892b72eeac4541487284e901251a3427966af5018d4eb29fa155b036dcb75dd217634146a072991afbc2c2
+  languageName: node
+  linkType: hard
+
 "isbinaryfile@npm:^4.0.8":
   version: 4.0.10
   resolution: "isbinaryfile@npm:4.0.10"
@@ -14396,13 +14404,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"isbinaryfile@npm:^5.0.0":
-  version: 5.0.4
-  resolution: "isbinaryfile@npm:5.0.4"
-  checksum: 10c0/fea255bfae67ff4827e8dd2238d6700d4803d02b4d892b72eeac4541487284e901251a3427966af5018d4eb29fa155b036dcb75dd217634146a072991afbc2c2
-  languageName: node
-  linkType: hard
-
 "isexe@npm:^2.0.0":
   version: 2.0.0
   resolution: "isexe@npm:2.0.0"