diff --git a/CHANGELOG.md b/CHANGELOG.md
index e46170c6d..8a2b2a531 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 
 ### 🐣新特性
 * 【core  】      WatchServer新增通过Path获取WatchKey方法（pr#1145@Gitee）
+* 【core  】      CopyOptions中增加setAutoTransCamelCase方法（issue#3452@Github）
 
 ### 🐞Bug修复
 * 【core  】      修复StrJoin当append内容后调用length()会出现空指针问题（issue#3444@Github）
diff --git a/hutool-core/src/main/java/cn/hutool/core/bean/BeanUtil.java b/hutool-core/src/main/java/cn/hutool/core/bean/BeanUtil.java
index 84cae5a15..25ada700c 100755
--- a/hutool-core/src/main/java/cn/hutool/core/bean/BeanUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/bean/BeanUtil.java
@@ -408,7 +408,9 @@ public class BeanUtil {
 	 * @param isToCamelCase 是否将Map中的下划线风格key转换为驼峰风格
 	 * @param copyOptions   转Bean选项
 	 * @return Bean
+	 * @deprecated isToCamelCase参数无效，请使用 {@link #toBean(Object, Class, CopyOptions)}
 	 */
+	@Deprecated
 	public static <T> T mapToBean(Map<?, ?> map, Class<T> beanClass, boolean isToCamelCase, CopyOptions copyOptions) {
 		return fillBeanWithMap(map, ReflectUtil.newInstanceIfPossible(beanClass), isToCamelCase, copyOptions);
 	}
@@ -437,7 +439,9 @@ public class BeanUtil {
 	 * @param isToCamelCase 是否将下划线模式转换为驼峰模式
 	 * @param isIgnoreError 是否忽略注入错误
 	 * @return Bean
+	 * @deprecated isToCamelCase参数无效，请使用{@link #fillBeanWithMap(Map, Object, boolean)}
 	 */
+	@Deprecated
 	public static <T> T fillBeanWithMap(Map<?, ?> map, T bean, boolean isToCamelCase, boolean isIgnoreError) {
 		return fillBeanWithMap(map, bean, isToCamelCase, CopyOptions.create().setIgnoreError(isIgnoreError));
 	}
@@ -465,7 +469,11 @@ public class BeanUtil {
 	 * @return Bean
 	 */
 	public static <T> T fillBeanWithMap(Map<?, ?> map, T bean, CopyOptions copyOptions) {
-		return fillBeanWithMap(map, bean, false, copyOptions);
+		if (MapUtil.isEmpty(map)) {
+			return bean;
+		}
+		copyProperties(map, bean, copyOptions);
+		return bean;
 	}
 
 	/**
@@ -478,14 +486,18 @@ public class BeanUtil {
 	 * @param copyOptions   属性复制选项 {@link CopyOptions}
 	 * @return Bean
 	 * @since 3.3.1
+	 * @deprecated isToCamelCase参数无效，请使用{@link #fillBeanWithMap(Map, Object, CopyOptions)}
 	 */
+	@Deprecated
 	public static <T> T fillBeanWithMap(Map<?, ?> map, T bean, boolean isToCamelCase, CopyOptions copyOptions) {
 		if (MapUtil.isEmpty(map)) {
 			return bean;
 		}
-		if (isToCamelCase) {
-			map = MapUtil.toCamelCaseMap(map);
-		}
+
+		// issue#3452，参数无效，MapToBeanCopier中已经有转驼峰逻辑
+//		if (isToCamelCase) {
+//			map = MapUtil.toCamelCaseMap(map);
+//		}
 		copyProperties(map, bean, copyOptions);
 		return bean;
 	}
diff --git a/hutool-core/src/main/java/cn/hutool/core/bean/copier/BeanToBeanCopier.java b/hutool-core/src/main/java/cn/hutool/core/bean/copier/BeanToBeanCopier.java
index 51250433c..804b56176 100755
--- a/hutool-core/src/main/java/cn/hutool/core/bean/copier/BeanToBeanCopier.java
+++ b/hutool-core/src/main/java/cn/hutool/core/bean/copier/BeanToBeanCopier.java
@@ -66,7 +66,7 @@ public class BeanToBeanCopier<S, T> extends AbsCopier<S, T> {
 			}
 
 			// 检查目标字段可写性
-			final PropDesc tDesc = targetPropDescMap.get(sFieldName);
+			final PropDesc tDesc = this.copyOptions.findPropDesc(targetPropDescMap, sFieldName);
 			if (null == tDesc || false == tDesc.isWritable(this.copyOptions.transientSupport)) {
 				// 字段不可写，跳过之
 				return;
diff --git a/hutool-core/src/main/java/cn/hutool/core/bean/copier/CopyOptions.java b/hutool-core/src/main/java/cn/hutool/core/bean/copier/CopyOptions.java
index d6224880a..4cb924893 100755
--- a/hutool-core/src/main/java/cn/hutool/core/bean/copier/CopyOptions.java
+++ b/hutool-core/src/main/java/cn/hutool/core/bean/copier/CopyOptions.java
@@ -1,5 +1,6 @@
 package cn.hutool.core.bean.copier;
 
+import cn.hutool.core.bean.PropDesc;
 import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.convert.Convert;
 import cn.hutool.core.convert.TypeConverter;
@@ -70,6 +71,11 @@ public class CopyOptions implements Serializable {
 	 */
 	protected boolean override = true;
 
+	/**
+	 * 是否自动转换为驼峰方式
+	 */
+	protected boolean autoTransCamelCase = true;
+
 	/**
 	 * 源对象和目标对象都是 {@code Map} 时, 需要忽略的源对象 {@code Map} key
 	 */
@@ -321,6 +327,19 @@ public class CopyOptions implements Serializable {
 		return this;
 	}
 
+	/**
+	 * 设置是否自动转换为驼峰方式<br>
+	 * 一般用于map转bean和bean转bean出现非驼峰格式时，在尝试转换失败的情况下，是否二次检查转为驼峰匹配
+	 *
+	 * @param autoTransCamelCase 是否自动转换为驼峰方式
+	 * @return this
+	 * @since 5.8.25
+	 */
+	public CopyOptions setAutoTransCamelCase(final boolean autoTransCamelCase) {
+		this.autoTransCamelCase = autoTransCamelCase;
+		return this;
+	}
+
 	/**
 	 * 设置自定义类型转换器，默认使用全局万能转换器转换。
 	 *
@@ -391,4 +410,25 @@ public class CopyOptions implements Serializable {
 
 		return false == this.ignoreKeySet.contains(key);
 	}
+
+	/**
+	 * 查找Map对应Bean的名称<br>
+	 * 尝试原名称、转驼峰名称、isXxx去掉is的名称
+	 *
+	 * @param targetPropDescMap 目标bean的属性描述Map
+	 * @param sKeyStr           键或字段名
+	 * @return {@link PropDesc}
+	 */
+	protected PropDesc findPropDesc(final Map<String, PropDesc> targetPropDescMap, final String sKeyStr) {
+		PropDesc propDesc = targetPropDescMap.get(sKeyStr);
+		// 转驼峰尝试查找
+		if (null == propDesc && this.autoTransCamelCase) {
+			final String camelCaseKey = StrUtil.toCamelCase(sKeyStr);
+			if (!StrUtil.equals(sKeyStr, camelCaseKey)) {
+				// 只有转换为驼峰后与原key不同才重复查询，相同说明本身就是驼峰，不需要二次查询
+				propDesc = targetPropDescMap.get(camelCaseKey);
+			}
+		}
+		return propDesc;
+	}
 }
diff --git a/hutool-core/src/main/java/cn/hutool/core/bean/copier/MapToBeanCopier.java b/hutool-core/src/main/java/cn/hutool/core/bean/copier/MapToBeanCopier.java
index 47d08ded4..7f0a98234 100755
--- a/hutool-core/src/main/java/cn/hutool/core/bean/copier/MapToBeanCopier.java
+++ b/hutool-core/src/main/java/cn/hutool/core/bean/copier/MapToBeanCopier.java
@@ -73,7 +73,7 @@ public class MapToBeanCopier<T> extends AbsCopier<Map<?, ?>, T> {
 			}
 
 			// 检查目标字段可写性
-			final PropDesc tDesc = findPropDesc(targetPropDescMap, sKeyStr);
+			final PropDesc tDesc = this.copyOptions.findPropDesc(targetPropDescMap, sKeyStr);
 			if (null == tDesc || false == tDesc.isWritable(this.copyOptions.transientSupport)) {
 				// 字段不可写，跳过之
 				return;
@@ -96,24 +96,4 @@ public class MapToBeanCopier<T> extends AbsCopier<Map<?, ?>, T> {
 		});
 		return this.target;
 	}
-
-	/**
-	 * 查找Map对应Bean的名称<br>
-	 * 尝试原名称、转驼峰名称、isXxx去掉is的名称
-	 *
-	 * @param targetPropDescMap 目标bean的属性描述Map
-	 * @param sKeyStr 键或字段名
-	 * @return {@link PropDesc}
-	 */
-	private PropDesc findPropDesc(Map<String, PropDesc> targetPropDescMap, String sKeyStr){
-		PropDesc propDesc = targetPropDescMap.get(sKeyStr);
-		if(null != propDesc){
-			return propDesc;
-		}
-
-		// 转驼峰尝试查找
-		sKeyStr = StrUtil.toCamelCase(sKeyStr);
-		propDesc = targetPropDescMap.get(sKeyStr);
-		return propDesc;
-	}
 }
diff --git a/hutool-core/src/test/java/cn/hutool/core/bean/Issue3452Test.java b/hutool-core/src/test/java/cn/hutool/core/bean/Issue3452Test.java
new file mode 100644
index 000000000..6716668a5
--- /dev/null
+++ b/hutool-core/src/test/java/cn/hutool/core/bean/Issue3452Test.java
@@ -0,0 +1,29 @@
+package cn.hutool.core.bean;
+
+import cn.hutool.core.bean.copier.CopyOptions;
+import lombok.Data;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class Issue3452Test {
+
+	@Test
+	public void fillBeanWithMapTest() {
+		final Map<String, Object> properties = new HashMap<>();
+		properties.put("name", "JohnDoe");
+		properties.put("user_age", 25);
+		final User user = BeanUtil.fillBeanWithMap(
+			properties, new User(), CopyOptions.create());
+		Assert.assertEquals("JohnDoe", user.getName());
+		Assert.assertEquals(25, user.getUserAge());
+	}
+
+	@Data
+	static class User {
+		private String name;
+		private int userAge;
+	}
+}