diff --git a/hutool-core/src/main/java/cn/hutool/core/util/EnumUtil.java b/hutool-core/src/main/java/cn/hutool/core/util/EnumUtil.java
index 57a3e437b..cc03082b3 100644
--- a/hutool-core/src/main/java/cn/hutool/core/util/EnumUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/util/EnumUtil.java
@@ -311,7 +311,7 @@ public class EnumUtil {
 	public static Map<String, Object> getNameFieldMap(final Class<? extends Enum<?>> clazz, final String fieldName) {
 		final Enum<?>[] enums = clazz.getEnumConstants();
 		if (null == enums) {
-			return Collections.emptyMap();
+			throw new IllegalArgumentException(StrUtil.format("Class [{}] is not an Enum type!", clazz.getName()));
 		}
 		final Map<String, Object> map = MapUtil.newHashMap(enums.length, true);
 		for (final Enum<?> e : enums) {