diff --git a/kernel-a-rule/src/main/java/cn/stylefeng/roses/kernel/rule/format/BaseSimpleFieldFormatProcess.java b/kernel-a-rule/src/main/java/cn/stylefeng/roses/kernel/rule/format/BaseSimpleFieldFormatProcess.java
index abe5ae739..b9f64f4ab 100644
--- a/kernel-a-rule/src/main/java/cn/stylefeng/roses/kernel/rule/format/BaseSimpleFieldFormatProcess.java
+++ b/kernel-a-rule/src/main/java/cn/stylefeng/roses/kernel/rule/format/BaseSimpleFieldFormatProcess.java
@@ -20,7 +20,7 @@ public abstract class BaseSimpleFieldFormatProcess implements SimpleFieldFormatP
 
     @Override
     public boolean canFormat(Object originValue) {
-        return MixFieldTypeUtil.whetherAssignClass(originValue, Long.class);
+        return MixFieldTypeUtil.whetherAssignClass(originValue, this.getItemClass());
     }
 
     @Override