diff --git a/ess/ess-api/src/main/java/cn/axzo/nanopart/ess/api/domain/contract/SignOption.java b/ess/ess-api/src/main/java/cn/axzo/nanopart/ess/api/domain/contract/SignOption.java
index 0b118168..5553c8d5 100644
--- a/ess/ess-api/src/main/java/cn/axzo/nanopart/ess/api/domain/contract/SignOption.java
+++ b/ess/ess-api/src/main/java/cn/axzo/nanopart/ess/api/domain/contract/SignOption.java
@@ -4,6 +4,8 @@ import lombok.Getter;
 import lombok.Setter;
 
 /**
+ * <a href="https://qian.tencent.com/developers/partnerApis/dataTypes/#approveroption">签署选项</a>
+ *
  * @author yanglin
  */
 @Setter @Getter