diff --git a/order/order-biz-api/pom.xml b/order/order-biz-api/pom.xml
new file mode 100644
index 000000000..b024bd6de
--- /dev/null
+++ b/order/order-biz-api/pom.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>onemall</artifactId>
+        <groupId>cn.iocoder.mall</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>order-biz-api</artifactId>
+
+    <dependencies>
+        <!-- Mall 相关 -->
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>common-framework</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+    </dependencies>
+
+
+</project>
diff --git a/order/order-biz-api/src/main/java/cn/iocoder/mall/order/biz/package-info.java b/order/order-biz-api/src/main/java/cn/iocoder/mall/order/biz/package-info.java
new file mode 100644
index 000000000..6c1bb4730
--- /dev/null
+++ b/order/order-biz-api/src/main/java/cn/iocoder/mall/order/biz/package-info.java
@@ -0,0 +1,6 @@
+/**
+ * 该项目，主要用于暴露一些共享的枚举类等。
+ *
+ * 例如说，RPC 接口提供错误码给调用方
+ */
+package cn.iocoder.mall.order.biz;
diff --git a/order/order-biz/pom.xml b/order/order-biz/pom.xml
new file mode 100644
index 000000000..3a30bd194
--- /dev/null
+++ b/order/order-biz/pom.xml
@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>onemall</artifactId>
+        <groupId>cn.iocoder.mall</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>order-biz</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>order-biz-api</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+
+        <!-- Spring 核心 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+        </dependency>
+
+        <!-- DB 相关 -->
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-tx</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-jdbc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>druid-spring-boot-starter</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>mall-spring-boot-starter-mybatis</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+
+        <!-- 工具类相关 -->
+        <dependency>
+            <groupId>org.mapstruct</groupId>
+            <artifactId>mapstruct</artifactId> <!-- use mapstruct-jdk8 for Java 8 or higher -->
+        </dependency>
+        <dependency>
+            <groupId>org.mapstruct</groupId>
+            <artifactId>mapstruct-jdk8</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>fastjson</artifactId>
+        </dependency>
+
+    </dependencies>
+
+
+</project>
diff --git a/order/order-biz/src/main/resources/biz.yaml b/order/order-biz/src/main/resources/biz.yaml
new file mode 100644
index 000000000..ba156c62e
--- /dev/null
+++ b/order/order-biz/src/main/resources/biz.yaml
@@ -0,0 +1,19 @@
+spring:
+  # 数据源配置项
+  datasource:
+    url: jdbc:mysql://s1.iocoder.cn:3306/mall_system?useSSL=false&useUnicode=true&characterEncoding=UTF-8
+    driver-class-name: com.mysql.jdbc.Driver
+    username: root
+    password: 3WLiVUBEwTbvAfsh
+
+# MyBatis Plus 配置项
+mybatis-plus:
+  configuration:
+    map-underscore-to-camel-case: true # 虽然默认为 true ，但是还是显示去指定下。
+  global-config:
+    db-config:
+      id-type: auto
+      logic-delete-value: 1 # 逻辑已删除值(默认为 1)
+      logic-not-delete-value: 0 # 逻辑未删除值(默认为 0)
+  mapper-locations: classpath*:mapper/*.xml
+  type-aliases-package: cn.iocoder.mall.system.biz.dataobject
diff --git a/order/order-rest/pom.xml b/order/order-rest/pom.xml
new file mode 100644
index 000000000..b525ca535
--- /dev/null
+++ b/order/order-rest/pom.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>order</artifactId>
+        <groupId>cn.iocoder.mall</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>order-rest</artifactId>
+    <description>提供 order 服务的 Rest 接口的实现，提供对外调用</description>
+
+    <dependencies>
+        <!-- Mall 相关 -->
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>order-biz</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+
+        <!-- Web 相关 -->
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>mall-spring-boot-starter-web</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>mall-spring-boot-starter-security</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>mall-spring-boot-starter-swagger</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+    </dependencies>
+
+
+</project>
diff --git a/order/order-rest/src/main/resources/rest.yaml b/order/order-rest/src/main/resources/rest.yaml
new file mode 100644
index 000000000..4040f4b25
--- /dev/null
+++ b/order/order-rest/src/main/resources/rest.yaml
@@ -0,0 +1,12 @@
+# 服务器的配置项
+server:
+  port: 18083
+  servlet:
+    context-path: /system-api/
+
+# Swagger 配置项
+swagger:
+  title: 订单子系统
+  description: 订单子系统
+  version: 1.0.0
+  base-package: cn.iocoder.mall.order.rest.controller
diff --git a/order/order-rpc-api/pom.xml b/order/order-rpc-api/pom.xml
new file mode 100644
index 000000000..d8c4aa5f7
--- /dev/null
+++ b/order/order-rpc-api/pom.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>order</artifactId>
+        <groupId>cn.iocoder.mall</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>order-rpc-api</artifactId>
+
+    <dependencies>
+        <!-- Mall 相关 -->
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>order-biz-api</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+
+        <!-- 工具类相关 -->
+        <dependency>
+            <groupId>javax.validation</groupId>
+            <artifactId>validation-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+        </dependency>
+
+    </dependencies>
+
+
+
+</project>
diff --git a/order/order-rpc-api/src/main/java/cn/iocoder/mall/order/rpc/package-info.java b/order/order-rpc-api/src/main/java/cn/iocoder/mall/order/rpc/package-info.java
new file mode 100644
index 000000000..5f974723b
--- /dev/null
+++ b/order/order-rpc-api/src/main/java/cn/iocoder/mall/order/rpc/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * 提供 order 服务的 RPC 接口的定义，提供内部调用
+ */
+package cn.iocoder.mall.order.rpc;
diff --git a/order/order-rpc/pom.xml b/order/order-rpc/pom.xml
new file mode 100644
index 000000000..bc7aac411
--- /dev/null
+++ b/order/order-rpc/pom.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>order</artifactId>
+        <groupId>cn.iocoder.mall</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>order-rpc</artifactId>
+
+    <dependencies>
+        <!-- Mall 相关 -->
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>order-rpc-api</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>order-biz</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+
+        <!-- RPC 相关 -->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-dubbo</artifactId>
+        </dependency>
+
+        <!-- Registry 和 Config 相关 -->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
+        </dependency>
+    </dependencies>
+
+
+
+</project>
diff --git a/order/order-rpc/src/main/java/cn/iocoder/mall/order/rpc/package-info.java b/order/order-rpc/src/main/java/cn/iocoder/mall/order/rpc/package-info.java
new file mode 100644
index 000000000..ac5570aeb
--- /dev/null
+++ b/order/order-rpc/src/main/java/cn/iocoder/mall/order/rpc/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * 提供 order 服务的 RPC 接口的实现，提供内部调用
+ */
+package cn.iocoder.mall.order.rpc;
diff --git a/order/order-rpc/src/main/resources/rpc-local.yaml b/order/order-rpc/src/main/resources/rpc-local.yaml
new file mode 100644
index 000000000..e056170af
--- /dev/null
+++ b/order/order-rpc/src/main/resources/rpc-local.yaml
@@ -0,0 +1,14 @@
+spring:
+  # Spring Cloud 配置项
+  cloud:
+    nacos:
+      # Spring Cloud Nacos Discovery 配置项
+      discovery:
+        server-addr: s1.iocoder.cn:8848 # Nacos 服务器地址
+        namespace: local # Nacos 命名空间
+
+# Dubbo 配置项
+dubbo:
+  # Dubbo 注册中心
+  registry:
+    address: spring-cloud://s1.iocoder.cn:8848 # 指定 Dubbo 服务注册中心的地址
diff --git a/order/order-rpc/src/main/resources/rpc-test.yaml b/order/order-rpc/src/main/resources/rpc-test.yaml
new file mode 100644
index 000000000..d3d0e9e69
--- /dev/null
+++ b/order/order-rpc/src/main/resources/rpc-test.yaml
@@ -0,0 +1,14 @@
+spring:
+  # Spring Cloud 配置项
+  cloud:
+    nacos:
+      # Spring Cloud Nacos Discovery 配置项
+      discovery:
+        server-addr: s1.iocoder.cn:8848 # Nacos 服务器地址
+        namespace: test # Nacos 命名空间
+
+# Dubbo 配置项
+dubbo:
+  # Dubbo 注册中心
+  registry:
+    address: spring-cloud://s1.iocoder.cn:8848 # 指定 Dubbo 服务注册中心的地址
diff --git a/order/order-rpc/src/main/resources/rpc.yaml b/order/order-rpc/src/main/resources/rpc.yaml
new file mode 100644
index 000000000..8c8b6b591
--- /dev/null
+++ b/order/order-rpc/src/main/resources/rpc.yaml
@@ -0,0 +1,40 @@
+# Dubbo 配置项
+dubbo:
+  # Spring Cloud Alibaba Dubbo 专属配置
+  cloud:
+    subscribed-services: '' # 设置订阅的应用列表，默认为 * 订阅所有应用
+  # Dubbo 提供者的协议
+  protocol:
+    name: dubbo
+    port: -1
+  # Dubbo 提供服务的扫描基础包
+  scan:
+    base-packages: cn.iocoder.mall.order.rpc.rpc
+  # Dubbo 服务提供者的配置
+  provider:
+    filter: -exception
+    SystemLogRPC:
+      version: 1.0.0
+    OAuth2RPC:
+      version: 1.0.0
+    AuthorizationRPC:
+      version: 1.0.0
+    AdminRPC:
+      version: 1.0.0
+    UserRPC:
+      version: 1.0.0
+    UserAddressRPC:
+      version: 1.0.0
+
+  # Dubbo 服务消费者的配置
+  consumer:
+    SystemLogRPC: # 用于 AccessLogInterceptor 等拦截器，记录 HTTP API 请求的访问日志
+      version: 1.0.0
+    OAuth2RPC: # 用于 AccountAuthInterceptor 拦截器，执行认证
+      version: 1.0.0
+    AuthorizationRPC: # 用于 AccountAuthInterceptor 拦截器，执行鉴权（权限验证）
+      version: 1.0.0
+    AdminRPC:
+      version: 1.0.0
+    UserRPC:
+      version: 1.0.0
diff --git a/order/pom.xml b/order/pom.xml
index 3fe0dbfaf..26cf50f5d 100644
--- a/order/pom.xml
+++ b/order/pom.xml
@@ -13,8 +13,12 @@
     <packaging>pom</packaging>
     <modules>
         <module>order-application</module>
-        <module>order-service-api</module>
-        <module>order-service-impl</module>
+        <module>order-biz</module>
+        <module>order-biz-api</module>
+        <module>order-rest</module>
+        <module>order-rpc</module>
+        <module>order-rpc-api</module>
+
     </modules>
 
     <dependencyManagement>
diff --git a/pom.xml b/pom.xml
index d7b0ebf35..95aded6bf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -15,7 +15,7 @@
     <version>1.0-SNAPSHOT</version>
     <modules>
         <module>product</module>
-<!--        <module>order</module>-->
+        <module>order</module>
         <module>user</module>
         <module>common</module>
         <module>system</module>
@@ -25,6 +25,12 @@
 <!--        <module>search</module>-->
 <!--        <module>demo</module>-->
         <module>mall-dependencies</module>
+        <module>order-biz</module>
+        <module>order/order-biz</module>
+        <module>order/order-biz-api</module>
+        <module>order/order-rpc</module>
+        <module>order/order-rpc-api</module>
+        <module>order-rest</module>
     </modules>
     <packaging>pom</packaging>