diff --git a/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/response/TagResp.java b/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/response/TagResp.java
index 87f02ecb3..7e5ff960a 100644
--- a/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/response/TagResp.java
+++ b/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/response/TagResp.java
@@ -4,6 +4,9 @@ import com.tencent.supersonic.common.pojo.RecordInfo;
 import lombok.Data;
 import lombok.ToString;
 
+import java.util.HashMap;
+import java.util.Map;
+
 @Data
 @ToString(callSuper = true)
 public class TagResp extends RecordInfo {
@@ -38,4 +41,6 @@ public class TagResp extends RecordInfo {
 
     private Integer sensitiveLevel;
 
+    private Map<String, Object> ext = new HashMap();
+
 }
diff --git a/headless/server/src/main/java/com/tencent/supersonic/headless/server/service/impl/TagMetaServiceImpl.java b/headless/server/src/main/java/com/tencent/supersonic/headless/server/service/impl/TagMetaServiceImpl.java
index b5a65e11e..8ff39bdfa 100644
--- a/headless/server/src/main/java/com/tencent/supersonic/headless/server/service/impl/TagMetaServiceImpl.java
+++ b/headless/server/src/main/java/com/tencent/supersonic/headless/server/service/impl/TagMetaServiceImpl.java
@@ -243,6 +243,7 @@ public class TagMetaServiceImpl implements TagMetaService {
             tagResp.setModelName(metric.getModelName());
             tagResp.setDomainId(metric.getDomainId());
             tagResp.setSensitiveLevel(metric.getSensitiveLevel());
+            tagResp.setExt(metric.getExt());
         }
         if (TagDefineType.DIMENSION.name().equalsIgnoreCase(tagDO.getType())) {
             DimensionResp dimensionResp = dimensionService.getDimension(tagDO.getItemId());
@@ -251,6 +252,7 @@ public class TagMetaServiceImpl implements TagMetaService {
             tagResp.setModelId(dimensionResp.getModelId());
             tagResp.setModelName(dimensionResp.getModelName());
             tagResp.setSensitiveLevel(dimensionResp.getSensitiveLevel());
+            tagResp.setExt(dimensionResp.getExt());
         }
 
         return tagResp;