diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/math/NumberParser.java b/hutool-core/src/main/java/cn/hutool/v7/core/math/NumberParser.java
index 2a8763a98b..3784af6a67 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/math/NumberParser.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/math/NumberParser.java
@@ -17,6 +17,7 @@
 package cn.hutool.v7.core.math;
 
 import cn.hutool.v7.core.array.ArrayUtil;
+import cn.hutool.v7.core.convert.ConvertUtil;
 import cn.hutool.v7.core.text.CharUtil;
 import cn.hutool.v7.core.text.StrUtil;
 
@@ -370,6 +371,9 @@ public class NumberParser {
 			numberStr = StrUtil.subSuf(numberStr, 1);
 		}
 
+		// issue@4197@Github 转为半角
+		numberStr = ConvertUtil.toDBC(numberStr);
+
 		try {
 			final NumberFormat format = NumberFormat.getInstance(locale);
 			if (format instanceof DecimalFormat) {
diff --git a/hutool-json/src/test/java/cn/hutool/v7/json/issues/Issue4197Test.java b/hutool-json/src/test/java/cn/hutool/v7/json/issues/Issue4197Test.java
new file mode 100644
index 0000000000..997a0a65c3
--- /dev/null
+++ b/hutool-json/src/test/java/cn/hutool/v7/json/issues/Issue4197Test.java
@@ -0,0 +1,29 @@
+package cn.hutool.v7.json.issues;
+
+import cn.hutool.v7.json.JSONUtil;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.math.BigDecimal;
+
+public class Issue4197Test {
+
+	@Data
+	@NoArgsConstructor
+	@AllArgsConstructor
+	static
+	class TestDTO {
+
+		private BigDecimal h;
+	}
+
+	@Test
+	void toBeanTest() {
+		final TestDTO bean = JSONUtil.toBean("{\"h\":\"123，456，789\"}", TestDTO.class);
+		Assertions.assertEquals(new BigDecimal("123456789"), bean.getH());
+	}
+
+}