diff --git a/hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java b/hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java
index 52bb135fca..c5bf25e57f 100644
--- a/hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java
@@ -2501,7 +2501,8 @@ public static double parseDouble(String number) {
 	}
 
 	/**
-	 * 将指定字符串转换为{@link Number} 对象
+	 * 将指定字符串转换为{@link Number} 对象<br>
+	 * 此方法不支持科学计数法
 	 *
 	 * @param numberStr Number字符串
 	 * @return Number对象
diff --git a/hutool-core/src/test/java/cn/hutool/core/util/NumberUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/util/NumberUtilTest.java
index 5f8603999d..ffdbd953e3 100644
--- a/hutool-core/src/test/java/cn/hutool/core/util/NumberUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/util/NumberUtilTest.java
@@ -393,4 +393,11 @@ public void generateRandomNumberTest2(){
 		final Set<?> set = Convert.convert(Set.class, ints);
 		Assert.assertEquals(7, set.size());
 	}
+
+	@Test
+	public void toPlainNumberTest(){
+		String num = "5344.34234e3";
+		final String s = new BigDecimal(num).toPlainString();
+		Assert.assertEquals("5344342.34", s);
+	}
 }