diff --git a/src/aks-preview/HISTORY.rst b/src/aks-preview/HISTORY.rst
index 9f3ce8eafcc..45b129c820a 100644
--- a/src/aks-preview/HISTORY.rst
+++ b/src/aks-preview/HISTORY.rst
@@ -12,6 +12,7 @@ To release a new version, please select a new version number (usually plus 1 to
 Pending
 +++++++
 *  [BREAKING CHANGE] Since the service no longer supports updating source resource id for role binding, so remove --source-resource-id of `aks trustedaccess rolebinding update` command
+*  change rolebinding create command parameter roles to comma-seperated
 
 0.5.93
 ++++++
diff --git a/src/aks-preview/azext_aks_preview/_help.py b/src/aks-preview/azext_aks_preview/_help.py
index 39c923358ac..3f1f8ba3262 100644
--- a/src/aks-preview/azext_aks_preview/_help.py
+++ b/src/aks-preview/azext_aks_preview/_help.py
@@ -1837,7 +1837,7 @@
 
     examples:
         - name: Create a new trusted access role binding
-          text: az aks trustedaccess rolebinding create -g myResourceGroup --cluster-name myCluster -n bindingName -s /subscriptions/0000/resourceGroups/myResourceGroup/providers/Microsoft.Demo/samples --roles Microsoft.Demo/samples/reader Microsoft.Demo/samples/writer
+          text: az aks trustedaccess rolebinding create -g myResourceGroup --cluster-name myCluster -n bindingName -s /subscriptions/0000/resourceGroups/myResourceGroup/providers/Microsoft.Demo/samples --roles Microsoft.Demo/samples/reader,Microsoft.Demo/samples/writer
 """
 
 helps['aks trustedaccess rolebinding update'] = """
diff --git a/src/aks-preview/azext_aks_preview/_params.py b/src/aks-preview/azext_aks_preview/_params.py
index d834db88fb1..f72a259bc5b 100644
--- a/src/aks-preview/azext_aks_preview/_params.py
+++ b/src/aks-preview/azext_aks_preview/_params.py
@@ -703,11 +703,11 @@ def load_arguments(self, _):
                        '--name', '-n'], required=True, help='The role binding name.')
 
     with self.argument_context('aks trustedaccess rolebinding create') as c:
-        c.argument('roles', nargs='*', help='space-separated roles: Microsoft.Demo/samples/reader Microsoft.Demo/samples/writer ...')
+        c.argument('roles', help='comma-separated roles: Microsoft.Demo/samples/reader,Microsoft.Demo/samples/writer,...')
         c.argument('source_resource_id', options_list=['--source-resource-id', '-s'], help='The source resource id of the binding')
 
     with self.argument_context('aks trustedaccess rolebinding update') as c:
-        c.argument('roles', nargs='*', help='space-separated roles: Microsoft.Demo/samples/reader Microsoft.Demo/samples/writer ...')
+        c.argument('roles', help='comma-separated roles: Microsoft.Demo/samples/reader,Microsoft.Demo/samples/writer,...')
 
 
 def _get_default_install_location(exe_name):
diff --git a/src/aks-preview/azext_aks_preview/custom.py b/src/aks-preview/azext_aks_preview/custom.py
index 16e601a906a..da4a0c58d42 100644
--- a/src/aks-preview/azext_aks_preview/custom.py
+++ b/src/aks-preview/azext_aks_preview/custom.py
@@ -2225,7 +2225,8 @@ def aks_trustedaccess_role_binding_create(cmd, client, resource_group_name, clus
         resource_type=CUSTOM_MGMT_AKS_PREVIEW,
         operation_group="trusted_access_role_bindings",
     )
-    roleBinding = TrustedAccessRoleBinding(source_resource_id=source_resource_id, roles=roles)
+    roleList = roles.split(',')
+    roleBinding = TrustedAccessRoleBinding(source_resource_id=source_resource_id, roles=roleList)
     return client.create_or_update(resource_group_name, cluster_name, role_binding_name, roleBinding)