diff --git a/CHANGELOG.md b/CHANGELOG.md
index f4794d58d1..79666131f9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,3 +17,4 @@
 - [fix:remove bcprov-jdk15on dependency.](https://github.com/Tencent/spring-cloud-tencent/pull/1178)
 - [feat:support configuration encryption.](https://github.com/Tencent/spring-cloud-tencent/pull/1182)
 - [feat:optimize examples.](https://github.com/Tencent/spring-cloud-tencent/pull/1186)
+- [feat: support nacos namespace mapping](https://github.com/Tencent/spring-cloud-tencent/pull/1122)
diff --git a/spring-cloud-starter-tencent-polaris-discovery/src/main/resources/META-INF/additional-spring-configuration-metadata.json b/spring-cloud-starter-tencent-polaris-discovery/src/main/resources/META-INF/additional-spring-configuration-metadata.json
index 12a535855f..e5b2285bd8 100644
--- a/spring-cloud-starter-tencent-polaris-discovery/src/main/resources/META-INF/additional-spring-configuration-metadata.json
+++ b/spring-cloud-starter-tencent-polaris-discovery/src/main/resources/META-INF/additional-spring-configuration-metadata.json
@@ -79,6 +79,13 @@
       "sourceType": "com.tencent.cloud.polaris.extend.nacos.NacosContextProperties",
       "defaultValue": "DEFAULT_GROUP"
     },
+    {
+      "name": "spring.cloud.nacos.discovery.namespace",
+      "type": "java.lang.String",
+      "description": "namespace id for nacos.",
+      "sourceType": "com.tencent.cloud.polaris.extend.nacos.NacosContextProperties",
+      "defaultValue": "public"
+    },
     {
       "name": "spring.cloud.nacos.discovery.password",
       "type": "java.lang.String",