diff --git a/iot-common/iot-message-bus/iot-message-notify/messageCenter.md b/iot-common/iot-message-bus/iot-message-notify/messageCenter.md
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+# 消息中心
+
+## 数据库设计
+
+### 通道类型配置
+
+~~~mysql
+CREATE TABLE channel_type
+(
+    id         bigint PRIMARY KEY AUTO_INCREMENT COMMENT 'ID',
+    title      varchar(128) NOT NULL COMMENT '标题',
+    createTime timestamp DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    updateTime timestamp DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间'
+) COMMENT '通道类型';
+
+INSERT INTO channel_type(title, createTime, updateTime)
+VALUES ('邮箱', current_timestamp(), current_timestamp());
+INSERT INTO channel_type(title, createTime, updateTime)
+VALUES ('飞书', current_timestamp(), current_timestamp());
+INSERT INTO channel_type(title, createTime, updateTime)
+VALUES ('短信', current_timestamp(), current_timestamp());
+INSERT INTO channel_type(title, createTime, updateTime)
+VALUES ('钉钉', current_timestamp(), current_timestamp());
+INSERT INTO channel_type(title, createTime, updateTime)
+VALUES ('企业微信', current_timestamp(), current_timestamp());
+
+CREATE TABLE channel
+(
+    id          bigint PRIMARY KEY AUTO_INCREMENT COMMENT 'ID',
+    title       varchar(128) COMMENT '标题',
+    channelType bigint NOT NULL COMMENT '渠道类型',
+    configParam text   NOT NULL COMMENT '配置参数',
+    userId      bigint COMMENT '配置归属',
+    createTime  timestamp DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    updateTime  timestamp DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间'
+) COMMENT '通道';
+
+
+CREATE TABLE message
+(
+    id         bigint PRIMARY KEY AUTO_INCREMENT COMMENT 'ID',
+    mac        varchar(128) COMMENT '设备MAC',
+    deviceId   varchar(128) COMMENT '设备ID',
+    content    text NOT NULL COMMENT '消息内容',
+    createTime timestamp DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    updateTime timestamp DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间'
+) COMMENT '消息';
+
+
+
+
+~~~
+
+### 通道类型配置
+
+~~~mysql
+CREATE TABLE channel
+(
+    id          bigint PRIMARY KEY AUTO_INCREMENT COMMENT 'ID',
+    title       varchar(128) COMMENT '类型',
+    configParam text COMMENT '配置参数',
+    createTime  datetime COMMENT '创建时间',
+    updateTime  datetime COMMENT '修改时间'
+) COMMENT '渠道';
+~~~
+
+### 通道订阅
+
+~~~mysql
+CREATE TABLE channel_subscribe
+(
+    id         bigint PRIMARY KEY AUTO_INCREMENT COMMENT 'ID',
+    channelId  bigint COMMENT '通道',
+    userId     bigint COMMENT '用户ID',
+    createTime datetime COMMENT '创建时间',
+    updateTime datetime COMMENT '修改时间'
+) COMMENT '渠道';
+~~~
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