diff --git a/hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/io/GraphSONSchemaSerializer.java b/hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/io/GraphSONSchemaSerializer.java
index 31d197c099..db8d874e8e 100644
--- a/hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/io/GraphSONSchemaSerializer.java
+++ b/hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/io/GraphSONSchemaSerializer.java
@@ -83,6 +83,8 @@ public Map<HugeKeys, Object> writeEdgeLabel(EdgeLabel edgeLabel) {
         }
 
         if (!edgeLabel.isFather()) {
+            map.put(HugeKeys.SOURCE_LABEL, edgeLabel.sourceLabelName());
+            map.put(HugeKeys.TARGET_LABEL, edgeLabel.targetLabelName());
             map.put(HugeKeys.LINKS,
                     graph.mapPairId2Name(edgeLabel.links()));
             map.put(HugeKeys.FREQUENCY, edgeLabel.frequency());
diff --git a/hugegraph-server/hugegraph-test/src/main/java/org/apache/hugegraph/unit/util/JsonUtilTest.java b/hugegraph-server/hugegraph-test/src/main/java/org/apache/hugegraph/unit/util/JsonUtilTest.java
index 6c5159d377..c76d536ff0 100644
--- a/hugegraph-server/hugegraph-test/src/main/java/org/apache/hugegraph/unit/util/JsonUtilTest.java
+++ b/hugegraph-server/hugegraph-test/src/main/java/org/apache/hugegraph/unit/util/JsonUtilTest.java
@@ -177,6 +177,8 @@ public void testSerializeEdgeLabel() {
         String json = JsonUtil.toJson(el);
         Assert.assertEquals("{\"id\":1,\"name\":\"knows\"," +
                             "\"edgelabel_type\":\"NORMAL\"," +
+                            "\"source_label\":\"person\"," +
+                            "\"target_label\":\"person\"," +
                             "\"links\":[{\"name\":\"name\"}]," +
                             "\"frequency\":\"SINGLE\",\"sort_keys\":[]," +
                             "\"nullable_keys\":[],\"index_labels\":[]," +