diff --git a/README.md b/README.md
index ed5efd2..36fb283 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,20 @@
 
 * 暂未支持`MongoDB`
 
+# 安装 & 运行
+
+```bash
+$ pip3 install -r requirements.txt
+$ uvicorn src:create_app --factory  or 
+$ sh run.sh  or
+$ python3 main.py  # 两条命令等价
+```
+
+# 部署到Deta
+
+* ***你需要提前准备一个Deta账号***
+* [![Deploy](https://button.deta.dev/1/svg)](https://go.deta.dev/deploy?repo=https://github.com/RTAkland/MoeCounter)
+
 # 开源
 
 - 本项目以[Apache-2.0](./LICENSE)许可开源, 即:
diff --git a/deta.json b/deta.json
new file mode 100644
index 0000000..c42c897
--- /dev/null
+++ b/deta.json
@@ -0,0 +1,13 @@
+{
+  "name": "MoeCounter",
+  "description": "一个Python版的MoeCounter重写， 并增加了一些功能",
+  "runtime": "python3.9",
+  "env": [
+    {
+      "key": "COUNTER_DB",
+      "description": "数据库类型, 默认是sqlite3, 也可以使用mysql, 格式: user:pwd@host:port/db",
+      "value": "sqlite3",
+      "required": true
+    }
+  ]
+}
\ No newline at end of file
diff --git a/docs/README.md b/docs/README.md
index c85febd..6bacade 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -6,15 +6,6 @@
 * 使用sqlite, 直接填写为`sqlite3` 即默认
 * 使用mysql, 需要按照以下格式填写: user:pwd@host:port/db
 
-# 安装 & 运行
-
-```bash
-$ pip3 install -r requirements.txt
-$ uvicorn src:create_app --factory  or 
-$ sh run.sh  or
-$ python3 main.py  # 两条命令等价
-```
-
 # 使用
 
 * 访问`http://127.0.0.1:8000/<any name you want>`
diff --git a/src/config.py b/src/config.py
index f2c94ea..c5e737c 100644
--- a/src/config.py
+++ b/src/config.py
@@ -4,6 +4,7 @@
 # @Development Tool: PyCharm
 # @Create Time: 2022/9/11
 # @File Name: config.py
+import os
 
 
 class Config:
@@ -12,4 +13,5 @@ class Config:
     sqlite3 -> sqlite3   (default)
     mysql -> user:pwd@host:port/db
     """
-    database = "sqlite3"  # Database type
+    database = os.getenv('COUNTER_DB') or "sqlite3"  # Database type
+    DETA = eval(os.getenv('DETA_RUNTIME').title())  # mark Deta
diff --git a/src/db/__init__.py b/src/db/__init__.py
index 60ea2d8..7df81d5 100644
--- a/src/db/__init__.py
+++ b/src/db/__init__.py
@@ -12,13 +12,20 @@ from src.config import Config
 
 database = Config.database  # operator
 
-if not os.path.exists('./src/db/data.sqlite') and \
-        Config.database == 'sqlite3':
+
+def download_file(path: str):
     print('Downloading database file. Please wait...')
     file_url = 'https://static.rtast.cn/data.sqlite'
-    urlretrieve(file_url, './src/db/data.sqlite')  # standard lib for downloading file
+    urlretrieve(file_url, path)  # standard lib for downloading file
     print('Download database file successfully.')
 
+
+if Config.DETA and Config.database == 'sqlite3':
+    if not os.path.exists('/tmp/data.sqlite'):
+        download_file('/tmp/data.sqlite')
+elif not Config.DETA and Config.database == 'sqlite3':
+    download_file('./src/db/data.sqlite')
+
 if Config.database == 'sqlite3':
     from src.db.db import SQLite as Database
 
diff --git a/src/db/db.py b/src/db/db.py
index 3ff90c6..429ca54 100644
--- a/src/db/db.py
+++ b/src/db/db.py
@@ -56,7 +56,10 @@ class BaseSQL:
 class SQLite(BaseSQL):
     def __init__(self):
         super().__init__()
-        self.conn = operator.connect('./src/db/data.sqlite')
+        if Config.DETA:
+            self.conn = operator.connect('/tmp/data.sqlite')
+        else:
+            self.conn = operator.connect('./src/db/data.sqlite')
         self.cursor = self.conn.cursor()