diff --git a/src/pages/KnowledgeBase/Detail/SettingsTab.jsx b/src/pages/KnowledgeBase/Detail/SettingsTab.jsx
index 98454f6..8dba641 100644
--- a/src/pages/KnowledgeBase/Detail/SettingsTab.jsx
+++ b/src/pages/KnowledgeBase/Detail/SettingsTab.jsx
@@ -13,6 +13,7 @@ import Breadcrumb from './components/Breadcrumb';
 import KnowledgeBaseForm from './components/KnowledgeBaseForm';
 import DeleteConfirmModal from './components/DeleteConfirmModal';
 import UserPermissionsManager from './components/UserPermissionsManager';
+import FileUploadModal from './components/FileUploadModal';
 
 // 部门和组别的映射关系
 const departmentGroups = {
@@ -47,6 +48,7 @@ export default function SettingsTab({ knowledgeBase }) {
     const [isSubmitting, setIsSubmitting] = useState(false);
     const [showDeleteConfirm, setShowDeleteConfirm] = useState(false);
     const [availableGroups, setAvailableGroups] = useState([]);
+    const [showUploadModal, setShowUploadModal] = useState(false);
 
     // 当部门变化时，更新可选的组别
     useEffect(() => {
@@ -93,7 +95,7 @@ export default function SettingsTab({ knowledgeBase }) {
                 allowed = ['admin', 'member', 'private'].includes(value);
             } else {
                 // 普通成员只能选择公共和private
-                allowed = ['admin',  'private'].includes(value);
+                allowed = ['admin', 'private'].includes(value);
             }
 
             if (!allowed) {
@@ -334,6 +336,26 @@ export default function SettingsTab({ knowledgeBase }) {
                 availableGroups={availableGroups}
             />
 
+            {/* Document Upload Section */}
+            <div className='card border-0 shadow-sm mt-4'>
+                <div className='card-body'>
+                    <h5 className='card-title mb-4'>文档管理</h5>
+                    <p className='text-muted mb-3'>
+                        上传文档到知识库，支持PDF、Word、Excel、TXT、Markdown和CSV等格式。
+                    </p>
+                    <button className='btn btn-primary' onClick={() => setShowUploadModal(true)}>
+                        上传文档
+                    </button>
+                </div>
+            </div>
+
+            {/* File Upload Modal */}
+            <FileUploadModal
+                show={showUploadModal}
+                onClose={() => setShowUploadModal(false)}
+                knowledgeBaseId={knowledgeBase.id}
+            />
+
             {/* User Permissions Manager */}
             {/* <UserPermissionsManager knowledgeBase={knowledgeBase} /> */}
 
diff --git a/src/pages/KnowledgeBase/Detail/components/FileUploadModal.jsx b/src/pages/KnowledgeBase/Detail/components/FileUploadModal.jsx
index 915f85e..0839ceb 100644
--- a/src/pages/KnowledgeBase/Detail/components/FileUploadModal.jsx
+++ b/src/pages/KnowledgeBase/Detail/components/FileUploadModal.jsx
@@ -1,23 +1,17 @@
-import React, { useRef, useEffect } from 'react';
+import React, { useRef, useState, useEffect } from 'react';
+import { useDispatch } from 'react-redux';
+import { uploadDocument, getKnowledgeBaseById } from '../../../../store/knowledgeBase/knowledgeBase.thunks';
 
 /**
  * 文件上传模态框组件
  */
-const FileUploadModal = ({
-    show,
-    newFile,
-    fileErrors,
-    isSubmitting,
-    onClose,
-    onDescriptionChange,
-    onFileChange,
-    onFileDrop,
-    onDragOver,
-    onUploadAreaClick,
-    onUpload,
-}) => {
+const FileUploadModal = ({ show, knowledgeBaseId, onClose }) => {
+    const dispatch = useDispatch();
     const fileInputRef = useRef(null);
     const modalRef = useRef(null);
+    const [selectedFile, setSelectedFile] = useState(null);
+    const [isUploading, setIsUploading] = useState(false);
+    const [fileError, setFileError] = useState('');
 
     // 处理上传区域点击事件
     const handleUploadAreaClick = () => {
@@ -28,13 +22,76 @@ const FileUploadModal = ({
     const handleDragOver = (e) => {
         e.preventDefault();
         e.stopPropagation();
-        onDragOver?.(e);
     };
 
     const handleDrop = (e) => {
         e.preventDefault();
         e.stopPropagation();
-        onFileDrop?.(e);
+
+        if (e.dataTransfer.files && e.dataTransfer.files.length > 0) {
+            handleFileSelected(e.dataTransfer.files[0]);
+        }
+    };
+
+    const handleFileChange = (e) => {
+        if (e.target.files && e.target.files.length > 0) {
+            handleFileSelected(e.target.files[0]);
+        }
+    };
+
+    const handleFileSelected = (file) => {
+        setFileError('');
+        setSelectedFile(file);
+    };
+
+    const resetFileInput = () => {
+        setSelectedFile(null);
+        setFileError('');
+        if (fileInputRef.current) {
+            fileInputRef.current.value = '';
+        }
+    };
+
+    const handleUpload = async () => {
+        if (!selectedFile) {
+            setFileError('请选择要上传的文件');
+            return;
+        }
+
+        setIsUploading(true);
+
+        try {
+            await dispatch(
+                uploadDocument({
+                    knowledge_base_id: knowledgeBaseId,
+                    file: selectedFile,
+                })
+            ).unwrap();
+
+            // 成功上传后刷新知识库信息以更新文件列表
+            dispatch(getKnowledgeBaseById(knowledgeBaseId));
+
+            // Reset the file input
+            resetFileInput();
+
+            // 不要在上传成功后关闭模态框，允许用户继续上传或手动关闭
+        } catch (error) {
+            console.error('Upload failed:', error);
+            setFileError('文件上传失败: ' + (error?.message || '未知错误'));
+
+            // 清空选中的文件
+            resetFileInput();
+        } finally {
+            setIsUploading(false);
+        }
+    };
+
+    const handleClose = () => {
+        // 只有在非上传状态才允许关闭
+        if (!isUploading) {
+            resetFileInput();
+            onClose();
+        }
     };
 
     // 清理函数
@@ -78,64 +135,60 @@ const FileUploadModal = ({
                 }}
             >
                 <div className='modal-header d-flex justify-content-between align-items-center mb-3'>
-                    <h5 className='modal-title m-0'>上传文件</h5>
-                    <button type='button' className='btn-close' onClick={onClose} aria-label='Close'></button>
+                    <h5 className='modal-title m-0'>上传文档</h5>
+                    <button
+                        type='button'
+                        className='btn-close'
+                        onClick={handleClose}
+                        disabled={isUploading}
+                        aria-label='Close'
+                    ></button>
                 </div>
                 <div className='modal-body'>
                     <div
                         className={`mb-3 p-4 border rounded text-center ${
-                            fileErrors.file ? 'border-danger' : 'border-dashed'
+                            fileError ? 'border-danger' : 'border-dashed'
                         }`}
-                        style={{ cursor: 'pointer' }}
-                        onClick={handleUploadAreaClick}
-                        onDrop={handleDrop}
+                        style={{ cursor: isUploading ? 'not-allowed' : 'pointer' }}
+                        onClick={!isUploading ? handleUploadAreaClick : undefined}
+                        onDrop={!isUploading ? handleDrop : undefined}
                         onDragOver={handleDragOver}
                     >
                         <input
                             type='file'
                             ref={fileInputRef}
                             className='d-none'
-                            onChange={onFileChange}
-                            accept='.pdf,.docx,.txt,.csv'
+                            onChange={handleFileChange}
+                            accept='.pdf,.doc,.docx,.txt,.md,.csv,.xlsx,.xls'
+                            disabled={isUploading}
                         />
-                        {newFile.file ? (
+                        {selectedFile ? (
                             <div>
                                 <p className='mb-1'>已选择文件：</p>
-                                <p className='fw-bold mb-0'>{newFile.file.name}</p>
+                                <p className='fw-bold mb-0'>{selectedFile.name}</p>
                             </div>
                         ) : (
                             <div>
                                 <p className='mb-1'>点击或拖拽文件到此处上传</p>
-                                <p className='text-muted small mb-0'>支持 PDF, DOCX, TXT, CSV 等格式</p>
+                                <p className='text-muted small mb-0'>
+                                    支持 PDF, Word, Excel, TXT, Markdown, CSV 等格式
+                                </p>
                             </div>
                         )}
-                        {fileErrors.file && <div className='text-danger mt-2'>{fileErrors.file}</div>}
-                    </div>
-                    <div className='mb-3'>
-                        <label htmlFor='fileDescription' className='form-label'>
-                            文件描述
-                        </label>
-                        <textarea
-                            className='form-control'
-                            id='fileDescription'
-                            rows='3'
-                            value={newFile.description}
-                            onChange={onDescriptionChange}
-                            placeholder='请输入文件描述（可选）'
-                        ></textarea>
+                        {fileError && <div className='text-danger mt-2'>{fileError}</div>}
                     </div>
                 </div>
                 <div className='modal-footer gap-2'>
-                    <button type='button' className='btn btn-secondary' onClick={onClose}>
-                        取消
+                    <button type='button' className='btn btn-secondary' onClick={handleClose} disabled={isUploading}>
+                        关闭
                     </button>
                     <button
                         type='button'
-                        className='btn btn-dark'
-                        onClick={onUpload}
-                        disabled={!newFile.file || isSubmitting}
+                        className='btn btn-primary'
+                        onClick={handleUpload}
+                        disabled={!selectedFile || isUploading}
                     >
-                        {isSubmitting ? (
+                        {isUploading ? (
                             <>
                                 <span
                                     className='spinner-border spinner-border-sm me-2'
@@ -145,7 +198,7 @@ const FileUploadModal = ({
                                 上传中...
                             </>
                         ) : (
-                            '上传'
+                            '上传文档'
                         )}
                     </button>
                 </div>
diff --git a/src/services/mockApi.js b/src/services/mockApi.js
index 46c9355..5c758da 100644
--- a/src/services/mockApi.js
+++ b/src/services/mockApi.js
@@ -674,7 +674,7 @@ export const mockGet = async (url, config = {}) => {
     throw { response: { status: 404, data: { message: 'Not found' } } };
 };
 
-export const mockPost = async (url, data) => {
+export const mockPost = async (url, data, isMultipart = false) => {
     console.log(`[MOCK API] POST ${url}`, data);
 
     // Simulate network delay
@@ -857,6 +857,26 @@ export const mockPost = async (url, data) => {
         };
     }
 
+    // 上传知识库文档
+    if (url.match(/\/knowledge-bases\/([^/]+)\/upload_document\//)) {
+        const knowledge_base_id = url.match(/\/knowledge-bases\/([^/]+)\/upload_document\//)[1];
+        const file = isMultipart ? data.get('file') : null;
+
+        return {
+            data: {
+                code: 200,
+                message: 'Document uploaded successfully',
+                data: {
+                    id: `doc-${Date.now()}`,
+                    knowledge_base_id: knowledge_base_id,
+                    filename: file ? file.name : 'mock-document.pdf',
+                    status: 'processing',
+                    created_at: new Date().toISOString(),
+                },
+            },
+        };
+    }
+
     throw { response: { status: 404, data: { message: 'Not found' } } };
 };
 
diff --git a/src/store/knowledgeBase/knowledgeBase.slice.js b/src/store/knowledgeBase/knowledgeBase.slice.js
index c95515c..65defd3 100644
--- a/src/store/knowledgeBase/knowledgeBase.slice.js
+++ b/src/store/knowledgeBase/knowledgeBase.slice.js
@@ -8,6 +8,7 @@ import {
     searchKnowledgeBases,
     requestKnowledgeBaseAccess,
     getKnowledgeBaseById,
+    uploadDocument,
 } from './knowledgeBase.thunks';
 
 const initialState = {
@@ -27,6 +28,7 @@ const initialState = {
     batchLoading: false,
     editStatus: 'idle',
     requestAccessStatus: 'idle',
+    uploadStatus: 'idle',
 };
 
 const knowledgeBaseSlice = createSlice({
@@ -180,6 +182,18 @@ const knowledgeBaseSlice = createSlice({
             .addCase(getKnowledgeBaseById.rejected, (state, action) => {
                 state.loading = false;
                 state.error = action.payload || 'Failed to get knowledge base details';
+            })
+            
+            // 上传文档
+            .addCase(uploadDocument.pending, (state) => {
+                state.uploadStatus = 'loading';
+            })
+            .addCase(uploadDocument.fulfilled, (state) => {
+                state.uploadStatus = 'successful';
+            })
+            .addCase(uploadDocument.rejected, (state, action) => {
+                state.uploadStatus = 'failed';
+                state.error = action.payload || 'Failed to upload document';
             });
     },
 });
diff --git a/src/store/knowledgeBase/knowledgeBase.thunks.js b/src/store/knowledgeBase/knowledgeBase.thunks.js
index 187af7f..663f68c 100644
--- a/src/store/knowledgeBase/knowledgeBase.thunks.js
+++ b/src/store/knowledgeBase/knowledgeBase.thunks.js
@@ -1,5 +1,5 @@
 import { createAsyncThunk } from '@reduxjs/toolkit';
-import { get, post, put, del } from '../../services/api';
+import { get, post, put, del, upload } from '../../services/api';
 import { showNotification } from '../notification.slice';
 
 /**
@@ -20,7 +20,7 @@ export const fetchKnowledgeBases = createAsyncThunk(
             return response.data;
         } catch (error) {
             console.log(error);
-            
+
             return rejectWithValue(error.response?.data.error.message || 'Failed to fetch knowledge bases');
         }
     }
@@ -196,3 +196,44 @@ export const requestKnowledgeBaseAccess = createAsyncThunk(
         }
     }
 );
+
+/**
+ * Upload a document to a knowledge base
+ * @param {Object} params - Upload parameters
+ * @param {string} params.knowledge_base_id - Knowledge base ID
+ * @param {File} params.file - File to upload
+ */
+export const uploadDocument = createAsyncThunk(
+    'knowledgeBase/uploadDocument',
+    async ({ knowledge_base_id, file }, { rejectWithValue, dispatch }) => {
+        try {
+            const formData = new FormData();
+            formData.append('file', file);
+
+            const response = await post(`/knowledge-bases/${knowledge_base_id}/upload_document/`, formData, true);
+
+            dispatch(
+                showNotification({
+                    type: 'success',
+                    message: `文档 ${file.name} 上传成功`,
+                })
+            );
+
+            // 处理新的返回格式
+            if (response.data && response.data.code === 200) {
+                return response.data.data;
+            }
+
+            return response.data;
+        } catch (error) {
+            const errorMessage = error.response?.data?.message || error.message || '文档上传失败';
+            dispatch(
+                showNotification({
+                    type: 'danger',
+                    message: errorMessage,
+                })
+            );
+            return rejectWithValue(errorMessage);
+        }
+    }
+);