diff --git a/hutool-core/src/main/java/cn/hutool/core/util/HexUtil.java b/hutool-core/src/main/java/cn/hutool/core/util/HexUtil.java
index 1083e2897e..cb1c135a67 100755
--- a/hutool-core/src/main/java/cn/hutool/core/util/HexUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/util/HexUtil.java
@@ -27,6 +27,9 @@ public class HexUtil {
 	 * @return 是否为16进制
 	 */
 	public static boolean isHexNumber(String value) {
+		if (StrUtil.isEmpty(value)) {
+			return false;
+		}
 		if (StrUtil.startWith(value, '-')) {
 			// issue#2875
 			return false;
diff --git a/hutool-core/src/test/java/cn/hutool/core/util/HexUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/util/HexUtilTest.java
index f8e7a07454..84b1ec8688 100755
--- a/hutool-core/src/test/java/cn/hutool/core/util/HexUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/util/HexUtilTest.java
@@ -59,6 +59,12 @@ public class HexUtilTest {
 		assertFalse(HexUtil.isHexNumber(a));
 	}
 
+	@Test
+	public void isHexNumberTest2() {
+		assertFalse(HexUtil.isHexNumber(""));
+		assertFalse(HexUtil.isHexNumber(null));
+	}
+
 	@Test
 	public void decodeTest(){
 		final String str = "e8c670380cb220095268f40221fc748fa6ac39d6e930e63c30da68bad97f885d";