diff --git a/kernel-a-rule/src/main/java/cn/stylefeng/roses/kernel/rule/constants/RuleConstants.java b/kernel-a-rule/src/main/java/cn/stylefeng/roses/kernel/rule/constants/RuleConstants.java
index 10f0fdd03..0985767dd 100644
--- a/kernel-a-rule/src/main/java/cn/stylefeng/roses/kernel/rule/constants/RuleConstants.java
+++ b/kernel-a-rule/src/main/java/cn/stylefeng/roses/kernel/rule/constants/RuleConstants.java
@@ -107,4 +107,9 @@ public interface RuleConstants {
      */
     String TENANT_DB_PREFIX = "sys_tenant_db_";
 
+    /**
+     * 默认租户ID
+     */
+    Long DEFAULT_ROOT_TENANT_ID = 1L;
+
 }
diff --git a/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/SaasServiceApi.java b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/SaasServiceApi.java
new file mode 100644
index 000000000..ea24eaba4
--- /dev/null
+++ b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/SaasServiceApi.java
@@ -0,0 +1,29 @@
+package cn.stylefeng.roses.kernel.db.mp.tenant;
+
+import cn.stylefeng.roses.kernel.db.mp.tenant.pojo.TenantSwitchInfo;
+
+/**
+ * 租户业务的相关API
+ *
+ * @author fengshuonan
+ * @since 2025/5/4 18:35
+ */
+public interface SaasServiceApi {
+
+    /**
+     * 通过租户id获取租户的切换信息
+     *
+     * @author fengshuonan
+     * @since 2025/5/4 18:35
+     */
+    TenantSwitchInfo getTenantSwitchInfo(Long tenantId);
+
+    /**
+     * 通过租户编码获取租户的去切换信息
+     *
+     * @author fengshuonan
+     * @since 2025/5/5 11:31
+     */
+    TenantSwitchInfo getTenantSwitchInfo(String tenantCode);
+
+}
diff --git a/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/TenantSwitchApi.java b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/TenantSwitchApi.java
new file mode 100644
index 000000000..df80d5d2f
--- /dev/null
+++ b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/TenantSwitchApi.java
@@ -0,0 +1,47 @@
+package cn.stylefeng.roses.kernel.db.mp.tenant;
+
+import cn.stylefeng.roses.kernel.db.mp.tenant.pojo.TenantSwitchInfo;
+
+import java.util.function.Supplier;
+
+/**
+ * 统一切换当前租户的API
+ * <p>
+ * 根据租户的数据源配置，判断是否切分租户id或者租户的独立数据源
+ *
+ * @author fengshuonan
+ * @since 2025/5/5 10:59
+ */
+public interface TenantSwitchApi {
+
+    /**
+     * 根据租户编码切换租户，并执行相关业务
+     *
+     * @param tenantCode 租户的编码
+     * @param action     需要切换租户的代码
+     * @author fengshuonan
+     * @since 2025/5/4 17:23
+     */
+    <T> T changeTenant(String tenantCode, Supplier<T> action);
+
+    /**
+     * 根据租户id切换租户，并执行相关业务
+     *
+     * @param tenantId 租户的id
+     * @param action   需要切换租户的代码
+     * @author fengshuonan
+     * @since 2025/5/4 17:23
+     */
+    <T> T changeTenant(Long tenantId, Supplier<T> action);
+
+    /**
+     * 切换租户，并执行相关业务
+     *
+     * @param tenantSwitchInfo 租户的详细信息
+     * @param action           需要切换租户的代码
+     * @author fengshuonan
+     * @since 2025/5/4 17:23
+     */
+    <T> T changeTenant(TenantSwitchInfo tenantSwitchInfo, Supplier<T> action);
+
+}
diff --git a/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/context/TenantSwitchContext.java b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/context/TenantSwitchContext.java
new file mode 100644
index 000000000..6d7f276a3
--- /dev/null
+++ b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/context/TenantSwitchContext.java
@@ -0,0 +1,21 @@
+package cn.stylefeng.roses.kernel.db.mp.tenant.context;
+
+import cn.hutool.extra.spring.SpringUtil;
+import cn.stylefeng.roses.kernel.db.mp.tenant.TenantSwitchApi;
+
+/**
+ * 租户切换的上下文，快捷工具
+ *
+ * @author fengshuonan
+ * @since 2025/5/5 11:21
+ */
+public class TenantSwitchContext {
+
+    public TenantSwitchContext() {
+    }
+
+    public static TenantSwitchApi me() {
+        return SpringUtil.getBean(TenantSwitchApi.class);
+    }
+
+}
diff --git a/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/defaultimpl/DefaultSaasServiceImpl.java b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/defaultimpl/DefaultSaasServiceImpl.java
new file mode 100644
index 000000000..5a29b2bd6
--- /dev/null
+++ b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/defaultimpl/DefaultSaasServiceImpl.java
@@ -0,0 +1,25 @@
+package cn.stylefeng.roses.kernel.db.mp.tenant.defaultimpl;
+
+import cn.stylefeng.roses.kernel.db.mp.tenant.SaasServiceApi;
+import cn.stylefeng.roses.kernel.db.mp.tenant.pojo.TenantSwitchInfo;
+import cn.stylefeng.roses.kernel.rule.constants.RuleConstants;
+
+/**
+ * 默认的租户业务的实现
+ *
+ * @author fengshuonan
+ * @since 2025/5/5 21:06
+ */
+public class DefaultSaasServiceImpl implements SaasServiceApi {
+
+    @Override
+    public TenantSwitchInfo getTenantSwitchInfo(Long tenantId) {
+        return new TenantSwitchInfo(RuleConstants.DEFAULT_ROOT_TENANT_ID, null, null);
+    }
+
+    @Override
+    public TenantSwitchInfo getTenantSwitchInfo(String tenantCode) {
+        return new TenantSwitchInfo(RuleConstants.DEFAULT_ROOT_TENANT_ID, tenantCode, null);
+    }
+
+}
diff --git a/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/defaultimpl/DefaultTenantSwitchImpl.java b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/defaultimpl/DefaultTenantSwitchImpl.java
new file mode 100644
index 000000000..55f7e63d6
--- /dev/null
+++ b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/defaultimpl/DefaultTenantSwitchImpl.java
@@ -0,0 +1,31 @@
+package cn.stylefeng.roses.kernel.db.mp.tenant.defaultimpl;
+
+import cn.stylefeng.roses.kernel.db.mp.tenant.TenantSwitchApi;
+import cn.stylefeng.roses.kernel.db.mp.tenant.pojo.TenantSwitchInfo;
+
+import java.util.function.Supplier;
+
+/**
+ * 某人的租户切换的实现
+ *
+ * @author fengshuonan
+ * @since 2025/5/5 21:06
+ */
+public class DefaultTenantSwitchImpl implements TenantSwitchApi {
+
+    @Override
+    public <T> T changeTenant(String tenantCode, Supplier<T> action) {
+        return action.get();
+    }
+
+    @Override
+    public <T> T changeTenant(Long tenantId, Supplier<T> action) {
+        return action.get();
+    }
+
+    @Override
+    public <T> T changeTenant(TenantSwitchInfo tenantSwitchInfo, Supplier<T> action) {
+        return action.get();
+    }
+
+}
diff --git a/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/pojo/TenantSwitchInfo.java b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/pojo/TenantSwitchInfo.java
new file mode 100644
index 000000000..fb4557877
--- /dev/null
+++ b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/tenant/pojo/TenantSwitchInfo.java
@@ -0,0 +1,42 @@
+package cn.stylefeng.roses.kernel.db.mp.tenant.pojo;
+
+import cn.stylefeng.roses.kernel.rule.annotation.ChineseDescription;
+import lombok.Data;
+
+/**
+ * 租户切换信息
+ *
+ * @author fengshuonan
+ * @since 2025/5/4 20:38
+ */
+@Data
+public class TenantSwitchInfo {
+
+    /**
+     * 租户id
+     */
+    @ChineseDescription("租户id")
+    private Long tenantId;
+
+    /**
+     * 租户唯一标识
+     */
+    @ChineseDescription("租户唯一标识")
+    private String tenantCode;
+
+    /**
+     * 数据隔离方式：1-租户id隔离，2-数据库分离
+     */
+    @ChineseDescription("数据隔离方式：1-租户id隔离，2-数据库分离")
+    private Integer dataMode;
+
+    public TenantSwitchInfo() {
+    }
+
+    public TenantSwitchInfo(Long tenantId, String tenantCode, Integer dataMode) {
+        this.tenantId = tenantId;
+        this.tenantCode = tenantCode;
+        this.dataMode = dataMode;
+    }
+
+}
diff --git a/kernel-d-db/db-spring-boot-starter/src/main/java/cn/stylefeng/roses/kernel/db/starter/ProjectTenantAutoConfiguration.java b/kernel-d-db/db-spring-boot-starter/src/main/java/cn/stylefeng/roses/kernel/db/starter/ProjectTenantAutoConfiguration.java
new file mode 100644
index 000000000..4c1592935
--- /dev/null
+++ b/kernel-d-db/db-spring-boot-starter/src/main/java/cn/stylefeng/roses/kernel/db/starter/ProjectTenantAutoConfiguration.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright [2020-2030] [https://www.stylefeng.cn]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Guns采用APACHE LICENSE 2.0开源协议，您在使用过程中，需要注意以下几点：
+ *
+ * 1.请不要删除和修改根目录下的LICENSE文件。
+ * 2.请不要删除和修改Guns源码头部的版权声明。
+ * 3.请保留源码和相关描述文件的项目出处，作者声明等。
+ * 4.分发源码时候，请注明软件出处 https://gitee.com/stylefeng/guns
+ * 5.在修改包名，模块名称，项目代码等时，请注明软件出处 https://gitee.com/stylefeng/guns
+ * 6.若您的项目无法满足以上几点，可申请商业授权
+ */
+package cn.stylefeng.roses.kernel.db.starter;
+
+import cn.stylefeng.roses.kernel.db.mp.tenant.SaasServiceApi;
+import cn.stylefeng.roses.kernel.db.mp.tenant.TenantSwitchApi;
+import cn.stylefeng.roses.kernel.db.mp.tenant.defaultimpl.DefaultSaasServiceImpl;
+import cn.stylefeng.roses.kernel.db.mp.tenant.defaultimpl.DefaultTenantSwitchImpl;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * 租户相关的自动配置
+ *
+ * @author fengshuonan
+ * @since 2025/5/5 21:03
+ */
+@Configuration
+public class ProjectTenantAutoConfiguration {
+
+    /**
+     * 租户数据获取的实现
+     *
+     * @author fengshuonan
+     * @since 2025/5/5 21:07
+     */
+    @Bean
+    @ConditionalOnMissingBean
+    public SaasServiceApi saasServiceApi() {
+        return new DefaultSaasServiceImpl();
+    }
+
+    /**
+     * 默认租户切换
+     *
+     * @author fengshuonan
+     * @since 2025/5/5 21:08
+     */
+    @Bean
+    @ConditionalOnMissingBean
+    public TenantSwitchApi tenantSwitchApi() {
+        return new DefaultTenantSwitchImpl();
+    }
+
+}
diff --git a/kernel-s-system/system-api/src/main/java/cn/stylefeng/roses/kernel/sys/api/constants/SysConstants.java b/kernel-s-system/system-api/src/main/java/cn/stylefeng/roses/kernel/sys/api/constants/SysConstants.java
index 18600a349..e69470037 100644
--- a/kernel-s-system/system-api/src/main/java/cn/stylefeng/roses/kernel/sys/api/constants/SysConstants.java
+++ b/kernel-s-system/system-api/src/main/java/cn/stylefeng/roses/kernel/sys/api/constants/SysConstants.java
@@ -24,6 +24,8 @@
  */
 package cn.stylefeng.roses.kernel.sys.api.constants;
 
+import cn.stylefeng.roses.kernel.rule.constants.RuleConstants;
+
 /**
  * 基础核心业务业务
  *
@@ -75,6 +77,6 @@ public interface SysConstants {
     /**
      * 默认租户ID
      */
-    Long DEFAULT_ROOT_TENANT_ID = 1L;
+    Long DEFAULT_ROOT_TENANT_ID = RuleConstants.DEFAULT_ROOT_TENANT_ID;
 
 }