diff --git a/hugegraph-core/src/main/java/org/apache/hugegraph/structure/HugeElement.java b/hugegraph-core/src/main/java/org/apache/hugegraph/structure/HugeElement.java
index 3e5d56ca0e..23f74f5220 100644
--- a/hugegraph-core/src/main/java/org/apache/hugegraph/structure/HugeElement.java
+++ b/hugegraph-core/src/main/java/org/apache/hugegraph/structure/HugeElement.java
@@ -431,6 +431,9 @@ public static final ElementKeys classifyKeys(Object... keyValues) {
                       .providedKeyValuesMustHaveALegalKeyOnEvenIndices();
             }
             if (val == null) {
+                if (key.equals(T.label)) {
+                    throw Element.Exceptions.labelCanNotBeNull();
+                }
                 throw Property.Exceptions.propertyDoesNotExist();
             }