diff --git a/backend/memory/README.md b/backend/memory/README.md
new file mode 100644
index 00000000..46121236
--- /dev/null
+++ b/backend/memory/README.md
@@ -0,0 +1,55 @@
+# M-MEMORY 人格体自用云盘存储
+
+## 模块信息
+- 端口: 3020
+- 目录: `/backend/memory/`
+- 分类: persona-growth / user-memory / system-log / knowledge-base
+
+## API 接口清单
+
+### 文件上传
+`POST /api/memory/upload`
+- FormData: file, category, description(可选), tags(可选,逗号分隔)
+- 限制: 单文件 ≤50MB, 类型: json/txt/md/csv/log/png/jpg
+
+### 文件列表
+`GET /api/memory/files`
+
+### 单文件信息
+`GET /api/memory/files/:id`
+
+### 下载文件
+`GET /api/memory/files/:id/download`
+
+### 删除文件
+`DELETE /api/memory/files/:id`
+
+### 分类统计
+`GET /api/memory/categories`
+
+### 按分类查询
+`GET /api/memory/categories/:category`
+
+### 关键词搜索
+`GET /api/memory/search?q=keyword`
+
+### 更新元数据
+`PUT /api/memory/files/:id/meta`
+- Body: { "description": "新描述", "tags": ["tag1","tag2"] }
+
+### 配额查询
+`GET /api/memory/quota`
+
+## 配置说明
+`config.json` 支持:
+- port: 服务端口
+- maxFileSizeMB: 单文件大小限制(MB)
+- allowedTypes: 允许的文件类型
+- quotaGB: 总存储配额(GB)
+- autoCleanDays: system-log 自动清理天数
+
+## 启动方法
+```bash
+cd backend/memory
+npm install
+node server.js
\ No newline at end of file
diff --git a/backend/memory/config.json b/backend/memory/config.json
new file mode 100644
index 00000000..a5ee4536
--- /dev/null
+++ b/backend/memory/config.json
@@ -0,0 +1,7 @@
+{
+  "port": 3020,
+  "maxFileSizeMB": 50,
+  "allowedTypes": ["json", "txt", "md", "csv", "log", "png", "jpg"],
+  "quotaGB": 1,
+  "autoCleanDays": 30
+}
\ No newline at end of file
diff --git a/backend/memory/memory-index.json b/backend/memory/memory-index.json
new file mode 100644
index 00000000..0637a088
--- /dev/null
+++ b/backend/memory/memory-index.json
@@ -0,0 +1 @@
+[]
\ No newline at end of file
diff --git a/backend/memory/package-lock.json b/backend/memory/package-lock.json
new file mode 100644
index 00000000..ea28a465
--- /dev/null
+++ b/backend/memory/package-lock.json
@@ -0,0 +1,1006 @@
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+      },
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+      }
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+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
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+        "object-inspect": "^1.13.3",
+        "side-channel-map": "^1.0.1"
+      },
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+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
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+      "license": "MIT",
+      "dependencies": {
+        "safe-buffer": "~5.2.0"
+      }
+    },
+    "node_modules/toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.6"
+      }
+    },
+    "node_modules/type-is": {
+      "version": "2.0.1",
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+      "license": "MIT",
+      "dependencies": {
+        "content-type": "^1.0.5",
+        "media-typer": "^1.1.0",
+        "mime-types": "^3.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/typedarray": {
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+      "license": "MIT"
+    },
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+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
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+      "license": "MIT"
+    },
+    "node_modules/uuid": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-13.0.0.tgz",
+      "integrity": "sha512-XQegIaBTVUjSHliKqcnFqYypAd4S+WCYt5NIeRs6w/UAry7z8Y9j5ZwRRL4kzq9U3sD6v+85er9FvkEaBpji2w==",
+      "funding": [
+        "https://github.com/sponsors/broofa",
+        "https://github.com/sponsors/ctavan"
+      ],
+      "license": "MIT",
+      "bin": {
+        "uuid": "dist-node/bin/uuid"
+      }
+    },
+    "node_modules/vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+      "license": "ISC"
+    }
+  }
+}
diff --git a/backend/memory/package.json b/backend/memory/package.json
new file mode 100644
index 00000000..19a27d74
--- /dev/null
+++ b/backend/memory/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "memory",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "commonjs",
+  "dependencies": {
+    "express": "^5.2.1",
+    "mime-types": "^3.0.2",
+    "multer": "^2.1.1",
+    "uuid": "^13.0.0"
+  }
+}
diff --git a/backend/memory/server.js b/backend/memory/server.js
new file mode 100644
index 00000000..5d4480ca
--- /dev/null
+++ b/backend/memory/server.js
@@ -0,0 +1,341 @@
+const express = require('express');
+const multer = require('multer');
+const path = require('path');
+const fs = require('fs');
+const { v4: uuidv4 } = require('uuid');
+const mime = require('mime-types');
+
+const app = express();
+const PORT = 3020;
+
+// ========== 配置加载 ==========
+const configPath = path.join(__dirname, 'config.json');
+let config = {};
+
+function loadConfig() {
+  try {
+    const data = fs.readFileSync(configPath, 'utf8');
+    config = JSON.parse(data);
+  } catch (err) {
+    // 默认配置
+    config = {
+      port: 3020,
+      maxFileSizeMB: 50,
+      allowedTypes: ['json', 'txt', 'md', 'csv', 'log', 'png', 'jpg'],
+      quotaGB: 1,
+      autoCleanDays: 30
+    };
+    // 写入默认配置
+    fs.writeFileSync(configPath, JSON.stringify(config, null, 2));
+  }
+}
+loadConfig();
+
+const MAX_SIZE = config.maxFileSizeMB * 1024 * 1024;
+const QUOTA_BYTES = config.quotaGB * 1024 * 1024 * 1024;
+const ALLOWED_EXTENSIONS = config.allowedTypes;
+const AUTO_CLEAN_DAYS = config.autoCleanDays;
+
+// ========== 目录初始化 ==========
+const UPLOAD_DIR = path.join(__dirname, 'uploads');
+const CATEGORIES = ['persona-growth', 'user-memory', 'system-log', 'knowledge-base'];
+
+// 创建 uploads 及其子目录
+if (!fs.existsSync(UPLOAD_DIR)) {
+  fs.mkdirSync(UPLOAD_DIR);
+}
+CATEGORIES.forEach(cat => {
+  const catPath = path.join(UPLOAD_DIR, cat);
+  if (!fs.existsSync(catPath)) {
+    fs.mkdirSync(catPath);
+  }
+});
+
+const INDEX_PATH = path.join(__dirname, 'memory-index.json');
+
+// 初始化索引文件
+let fileIndex = [];
+if (fs.existsSync(INDEX_PATH)) {
+  try {
+    fileIndex = JSON.parse(fs.readFileSync(INDEX_PATH, 'utf8'));
+  } catch (err) {
+    fileIndex = [];
+  }
+} else {
+  fs.writeFileSync(INDEX_PATH, JSON.stringify([], null, 2));
+}
+
+// ========== 辅助函数 ==========
+function saveIndex() {
+  fs.writeFileSync(INDEX_PATH, JSON.stringify(fileIndex, null, 2));
+}
+
+function getFileSize(filePath) {
+  try {
+    const stat = fs.statSync(filePath);
+    return stat.size;
+  } catch {
+    return 0;
+  }
+}
+
+// 计算已用空间
+function getUsedSpace() {
+  let total = 0;
+  fileIndex.forEach(item => {
+    total += item.size || 0;
+  });
+  return total;
+}
+
+// 检查配额
+function checkQuota(newFileSize) {
+  const used = getUsedSpace();
+  return (used + newFileSize) <= QUOTA_BYTES;
+}
+
+// 自动清理旧日志（system-log 超过30天）
+function autoClean() {
+  const now = Date.now();
+  const maxAge = AUTO_CLEAN_DAYS * 24 * 60 * 60 * 1000;
+  
+  fileIndex = fileIndex.filter(item => {
+    if (item.category === 'system-log') {
+      const uploadedAt = new Date(item.uploadedAt).getTime();
+      if (now - uploadedAt > maxAge) {
+        // 删除物理文件
+        const filePath = path.join(UPLOAD_DIR, item.category, item.storedName);
+        try {
+          fs.unlinkSync(filePath);
+        } catch (err) {
+          // 文件可能已经不存在
+        }
+        return false; // 从索引移除
+      }
+    }
+    return true;
+  });
+  
+  saveIndex();
+}
+
+// 每天执行一次清理
+setInterval(autoClean, 24 * 60 * 60 * 1000);
+// 启动时也执行一次
+autoClean();
+
+// ========== multer 配置 ==========
+const storage = multer.diskStorage({
+  destination: function (req, file, cb) {
+    const category = req.body.category;
+    console.log('收到的 category:', category);  // 加这一行看看
+    if (!CATEGORIES.includes(category)) {
+      return cb(new Error('分类必须是 persona-growth / user-memory / system-log / knowledge-base'));
+    }
+    const dest = path.join(UPLOAD_DIR, category);
+    cb(null, dest);
+  },
+  filename: function (req, file, cb) {
+    const ext = path.extname(file.originalname);
+    const storedName = uuidv4() + ext;
+    cb(null, storedName);
+  }
+});
+
+const fileFilter = (req, file, cb) => {
+  const ext = path.extname(file.originalname).toLowerCase().replace('.', '');
+  if (ALLOWED_EXTENSIONS.includes(ext)) {
+    cb(null, true);
+  } else {
+    cb(new Error(`不允许的文件类型，允许的类型: ${ALLOWED_EXTENSIONS.join(', ')}`));
+  }
+};
+
+const upload = multer({
+  storage: storage,
+  limits: { fileSize: MAX_SIZE },
+  fileFilter: fileFilter
+});
+
+app.use(express.json());
+app.use(express.urlencoded({ extended: true }));
+
+// ========== API 路由 ==========
+
+// 上传文件
+app.post('/api/memory/upload', upload.single('file'), (req, res) => {
+  if (!req.file) {
+    return res.status(400).json({ error: '没有上传文件' });
+  }
+
+  const { category, description = '', tags = '' } = req.body;
+  
+  // 配额检查
+  if (!checkQuota(req.file.size)) {
+    // 删除已上传的文件
+    fs.unlinkSync(req.file.path);
+    return res.status(413).json({ error: '存储配额已满，无法上传' });
+  }
+
+  const fileRecord = {
+    id: uuidv4(),
+    filename: req.file.originalname,
+    storedName: req.file.filename,
+    category: category,
+    size: req.file.size,
+    mimeType: req.file.mimetype,
+    description: description,
+    tags: tags ? tags.split(',').map(t => t.trim()) : [],
+    uploadedAt: new Date().toISOString(),
+    updatedAt: new Date().toISOString()
+  };
+
+  fileIndex.push(fileRecord);
+  saveIndex();
+
+  res.status(201).json(fileRecord);
+});
+
+// 文件列表
+app.get('/api/memory/files', (req, res) => {
+  res.json(fileIndex);
+});
+
+// 单文件信息
+app.get('/api/memory/files/:id', (req, res) => {
+  const file = fileIndex.find(f => f.id === req.params.id);
+  if (!file) {
+    return res.status(404).json({ error: '文件不存在' });
+  }
+  res.json(file);
+});
+
+// 下载文件
+app.get('/api/memory/files/:id/download', (req, res) => {
+  const file = fileIndex.find(f => f.id === req.params.id);
+  if (!file) {
+    return res.status(404).json({ error: '文件不存在' });
+  }
+
+  const filePath = path.join(UPLOAD_DIR, file.category, file.storedName);
+  if (!fs.existsSync(filePath)) {
+    return res.status(404).json({ error: '物理文件不存在' });
+  }
+
+  res.download(filePath, file.filename);
+});
+
+// 删除文件
+app.delete('/api/memory/files/:id', (req, res) => {
+  const index = fileIndex.findIndex(f => f.id === req.params.id);
+  if (index === -1) {
+    return res.status(404).json({ error: '文件不存在' });
+  }
+
+  const file = fileIndex[index];
+  const filePath = path.join(UPLOAD_DIR, file.category, file.storedName);
+  
+  // 删除物理文件
+  try {
+    fs.unlinkSync(filePath);
+  } catch (err) {
+    // 文件可能已不存在，继续删除索引
+  }
+
+  // 删除索引
+  fileIndex.splice(index, 1);
+  saveIndex();
+
+  res.json({ message: '删除成功' });
+});
+
+// 分类统计
+app.get('/api/memory/categories', (req, res) => {
+  const stats = {};
+  CATEGORIES.forEach(cat => {
+    const files = fileIndex.filter(f => f.category === cat);
+    const count = files.length;
+    const totalSize = files.reduce((sum, f) => sum + (f.size || 0), 0);
+    stats[cat] = { count, totalSize };
+  });
+  res.json(stats);
+});
+
+// 按分类查文件
+app.get('/api/memory/categories/:category', (req, res) => {
+  const category = req.params.category;
+  if (!CATEGORIES.includes(category)) {
+    return res.status(400).json({ error: '分类不存在' });
+  }
+  const files = fileIndex.filter(f => f.category === category);
+  res.json(files);
+});
+
+// 关键词搜索
+app.get('/api/memory/search', (req, res) => {
+  const q = req.query.q;
+  if (!q) {
+    return res.status(400).json({ error: '请提供搜索关键词' });
+  }
+
+  const keyword = q.toLowerCase();
+  const results = fileIndex.filter(f => {
+    return (
+      f.filename.toLowerCase().includes(keyword) ||
+      f.description.toLowerCase().includes(keyword) ||
+      f.tags.some(tag => tag.toLowerCase().includes(keyword))
+    );
+  });
+
+  res.json(results);
+});
+
+// 更新元数据
+app.put('/api/memory/files/:id/meta', (req, res) => {
+  const { description, tags } = req.body;
+  const file = fileIndex.find(f => f.id === req.params.id);
+  if (!file) {
+    return res.status(404).json({ error: '文件不存在' });
+  }
+
+  if (description !== undefined) file.description = description;
+  if (tags !== undefined) {
+    file.tags = Array.isArray(tags) ? tags : tags.split(',').map(t => t.trim());
+  }
+  file.updatedAt = new Date().toISOString();
+
+  saveIndex();
+  res.json(file);
+});
+
+// 配额查询
+app.get('/api/memory/quota', (req, res) => {
+  const used = getUsedSpace();
+  res.json({
+    quotaGB: config.quotaGB,
+    quotaBytes: QUOTA_BYTES,
+    usedBytes: used,
+    usedGB: (used / (1024*1024*1024)).toFixed(3),
+    remainingBytes: QUOTA_BYTES - used,
+    remainingGB: ((QUOTA_BYTES - used) / (1024*1024*1024)).toFixed(3),
+    totalFiles: fileIndex.length
+  });
+});
+
+// 错误处理中间件
+app.use((err, req, res, next) => {
+  if (err instanceof multer.MulterError) {
+    if (err.code === 'LIMIT_FILE_SIZE') {
+      return res.status(413).json({ error: `文件大小超过限制 (最大 ${config.maxFileSizeMB}MB)` });
+    }
+    return res.status(400).json({ error: err.message });
+  }
+  if (err) {
+    return res.status(400).json({ error: err.message });
+  }
+  next();
+});
+
+app.listen(PORT, () => {
+  console.log(`M-MEMORY 服务运行在端口 ${PORT}`);
+});
\ No newline at end of file
diff --git a/test.txt b/test.txt
new file mode 100644
index 00000000..ce013625
--- /dev/null
+++ b/test.txt
@@ -0,0 +1 @@
+hello