diff --git a/fine-skywalking-toolkit-trace/src/main/java/org/apache/skywalking/apm/toolkit/trace/TraceDomain.java b/fine-skywalking-toolkit-trace/src/main/java/org/apache/skywalking/apm/toolkit/trace/TraceDomain.java
new file mode 100644
index 000000000..76ba22f8a
--- /dev/null
+++ b/fine-skywalking-toolkit-trace/src/main/java/org/apache/skywalking/apm/toolkit/trace/TraceDomain.java
@@ -0,0 +1,28 @@
+package org.apache.skywalking.apm.toolkit.trace;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * 用于标记模块或者领域, 配合{@link Trace}使用
+ *
+ * 若类和方法上同时定义，方法上的优先
+ *
+ * 若{@link Trace#operationName()}为空, 最终生成的span名为:
+ *   领域名/简单类名#简单方法名。
+ * 否则为:
+ *   领域名/operationName
+ *
+ * @author Elijah
+ * created on 2023-02-22
+ */
+@Target({ElementType.METHOD, ElementType.TYPE})
+@Retention(RetentionPolicy.RUNTIME)
+public @interface TraceDomain {
+
+    //领域名
+    String value() default "";
+
+}