diff --git a/cyborgclient/osc/v2/accelerator_request.py b/cyborgclient/osc/v2/accelerator_request.py
index 51e7265..18aac00 100644
--- a/cyborgclient/osc/v2/accelerator_request.py
+++ b/cyborgclient/osc/v2/accelerator_request.py
@@ -249,6 +249,13 @@ class BindAcceleratorRequest(command.ShowOne):
             metavar="<device_rp_uuid>",
             help=_("Bind device_rp_uuid of the accelerator request")
         )
+        parser.add_argument(
+            "project_id",
+            metavar="<project_id>",
+            help=_("Bind current user's project_id to the accelerator "
+                   "request. The field requires at least "
+                   "``--os-accelerator-api-version 2.1``.")
+        )
 
         return parser
 
diff --git a/releasenotes/notes/support-project-id-931fc61c818da675.yaml b/releasenotes/notes/support-project-id-931fc61c818da675.yaml
new file mode 100644
index 0000000..a81a23f
--- /dev/null
+++ b/releasenotes/notes/support-project-id-931fc61c818da675.yaml
@@ -0,0 +1,7 @@
+---
+features:
+  - |
+    Add support for microversion 2.1, when apply arq patch, ``project_id`` of
+    current user can be saved in arq, which can forbidden other user to
+    operate the arq, like this:
+    ``openstack --os-accelerator-api-version 2.1 accelerator arq bind --fileds project_id``