diff --git a/hugegraph-client/src/main/java/com/baidu/hugegraph/api/graphs/GraphsAPI.java b/hugegraph-client/src/main/java/com/baidu/hugegraph/api/graphs/GraphsAPI.java
index 88516995f..55cc57833 100644
--- a/hugegraph-client/src/main/java/com/baidu/hugegraph/api/graphs/GraphsAPI.java
+++ b/hugegraph-client/src/main/java/com/baidu/hugegraph/api/graphs/GraphsAPI.java
@@ -60,7 +60,7 @@ public Map<String, String> create(String name, String cloneGraphName,
                                       String configText) {
         this.client.checkApiVersion("0.67", "dynamic graph add");
         MultivaluedHashMap<String, Object> headers = new MultivaluedHashMap<>();
-        headers.add(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON);
+        headers.add(HttpHeaders.CONTENT_TYPE, MediaType.TEXT_PLAIN);
         Map<String, Object> params = null;
         if (StringUtils.isNotEmpty(cloneGraphName)) {
             params = ImmutableMap.of("clone_graph_name", cloneGraphName);