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 164c57b0b..10f0fdd03 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
@@ -102,4 +102,9 @@ public interface RuleConstants {
      */
     String DEFAULT_SERVER_DEPLOY_HOST = "http://localhost:8080";
 
+    /**
+     * 租户数据源标识前缀
+     */
+    String TENANT_DB_PREFIX = "sys_tenant_db_";
+
 }