diff --git a/src/main/java/com/imyeyu/java/TimiJava.java b/src/main/java/com/imyeyu/java/TimiJava.java
index dc9b4ac..4c8bbbc 100644
--- a/src/main/java/com/imyeyu/java/TimiJava.java
+++ b/src/main/java/com/imyeyu/java/TimiJava.java
@@ -12,6 +12,8 @@ import java.util.Map;
  */
 public interface TimiJava {
 
+	String ZERO_UUID = "00000000-0000-0000-0000-000000000000";
+
 	/**
 	 * 通用判空
 	 * <pre>