diff --git a/src/main/java/cn/iocoder/dashboard/common/annotation/BizTracing.java b/src/main/java/cn/iocoder/dashboard/common/annotation/BizTracing.java
index 3b67bf70b..d254552d1 100644
--- a/src/main/java/cn/iocoder/dashboard/common/annotation/BizTracing.java
+++ b/src/main/java/cn/iocoder/dashboard/common/annotation/BizTracing.java
@@ -13,11 +13,11 @@ import java.lang.annotation.*;
  */
 public @interface BizTracing {
 
-    String BIZ_ID = "bizId";
-    String BIZ_TYPE = "bizType";
+    String BIZ_ID_TAG = "bizId";
+    String BIZ_TYPE_TAG = "bizType";
 
-    String bizId() default "NULL_ID";
+    String bizId();
 
-    String bizType() default "NULL_TYPE";
+    String bizType();
 
 }
diff --git a/src/main/java/cn/iocoder/dashboard/common/annotation/BizTracingAop.java b/src/main/java/cn/iocoder/dashboard/common/annotation/BizTracingAop.java
index 9486d4d19..f8b2241b6 100644
--- a/src/main/java/cn/iocoder/dashboard/common/annotation/BizTracingAop.java
+++ b/src/main/java/cn/iocoder/dashboard/common/annotation/BizTracingAop.java
@@ -1,5 +1,6 @@
 package cn.iocoder.dashboard.common.annotation;
 
+import cn.hutool.core.util.StrUtil;
 import cn.iocoder.dashboard.util.sping.SpElUtil;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.skywalking.apm.toolkit.trace.ActiveSpan;
@@ -22,8 +23,12 @@ public class BizTracingAop {
     public void tagBizInfo(ProceedingJoinPoint joinPoint, BizTracing bizTracing) {
         String bizId = SpElUtil.analysisSpEl(bizTracing.bizId(), joinPoint);
         String bizType = SpElUtil.analysisSpEl(bizTracing.bizType(), joinPoint);
+        if (StrUtil.isBlankIfStr(bizId)) {
+            log.error("empty biz: bizId[{}], bizType[{}].", bizId, bizType);
+            return;
+        }
         log.info("accept biz: bizId[{}], bizType[{}].", bizId, bizType);
-        ActiveSpan.tag(BizTracing.BIZ_ID, bizId);
-        ActiveSpan.tag(BizTracing.BIZ_TYPE, bizType);
+        ActiveSpan.tag(BizTracing.BIZ_ID_TAG, bizId);
+        ActiveSpan.tag(BizTracing.BIZ_TYPE_TAG, bizType);
     }
 }