diff --git a/hutool-core/src/main/java/org/dromara/hutool/core/bean/copier/BeanToMapCopier.java b/hutool-core/src/main/java/org/dromara/hutool/core/bean/copier/BeanToMapCopier.java
index f47216885..9ad627d6b 100644
--- a/hutool-core/src/main/java/org/dromara/hutool/core/bean/copier/BeanToMapCopier.java
+++ b/hutool-core/src/main/java/org/dromara/hutool/core/bean/copier/BeanToMapCopier.java
@@ -85,7 +85,7 @@ public class BeanToMapCopier extends AbsCopier<Object, Map> {
 
 			// 获取目标值真实类型并转换源值
 			final Type[] typeArguments = TypeUtil.getTypeArguments(this.targetType);
-			if(null != typeArguments){
+			if(null != typeArguments && typeArguments.length > 1){
 				//sValue = Convert.convertWithCheck(typeArguments[1], sValue, null, this.copyOptions.ignoreError);
 				sValue = this.copyOptions.convertField(typeArguments[1], sValue);
 			}