diff --git a/releasenotes/notes/add-volume-manage-client-as-library-78ab198a1dc1bd41.yaml b/releasenotes/notes/add-volume-manage-client-as-library-78ab198a1dc1bd41.yaml
new file mode 100644
index 0000000..3453050
--- /dev/null
+++ b/releasenotes/notes/add-volume-manage-client-as-library-78ab198a1dc1bd41.yaml
@@ -0,0 +1,9 @@
+---
+features:
+  - |
+    Add the unmanage volume API service method in v2 volumes_client library.
+    Define v2 volume_manage_client client for the volume service as library
+    interfaces, allowing other projects to use this module as stable libraries
+    without maintenance changes.
+
+    * volume_manage_client(v2)
diff --git a/tempest/api/volume/admin/v2/test_volume_manage.py b/tempest/api/volume/admin/v2/test_volume_manage.py
new file mode 100644
index 0000000..f983490
--- /dev/null
+++ b/tempest/api/volume/admin/v2/test_volume_manage.py
@@ -0,0 +1,81 @@
+# Copyright 2017 FiberHome Telecommunication Technologies CO.,LTD
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from tempest.api.volume import base
+from tempest.common import waiters
+from tempest import config
+from tempest.lib.common.utils import data_utils
+from tempest.lib import decorators
+
+CONF = config.CONF
+
+
+class VolumeManageAdminV2Test(base.BaseVolumeAdminTest):
+
+    @classmethod
+    def skip_checks(cls):
+        super(VolumeManageAdminV2Test, cls).skip_checks()
+
+        if not CONF.volume_feature_enabled.manage_volume:
+            raise cls.skipException("Manage volume tests are disabled")
+
+        if len(CONF.volume.manage_volume_ref) != 2:
+            raise cls.skipException("Manage volume ref is not correctly "
+                                    "configured")
+
+    @decorators.idempotent_id('70076c71-0ce1-4208-a8ff-36a66e65cc1e')
+    def test_unmanage_manage_volume(self):
+        # Create original volume
+        org_vol_id = self.create_volume()['id']
+        org_vol_info = self.admin_volume_client.show_volume(
+            org_vol_id)['volume']
+
+        # Unmanage the original volume
+        self.admin_volume_client.unmanage_volume(org_vol_id)
+        self.admin_volume_client.wait_for_resource_deletion(org_vol_id)
+
+        # Verify the original volume does not exist in volume list
+        params = {'all_tenants': 1}
+        all_tenants_volumes = self.admin_volume_client.list_volumes(
+            detail=True, params=params)['volumes']
+        self.assertNotIn(org_vol_id, [v['id'] for v in all_tenants_volumes])
+
+        # Manage volume
+        new_vol_name = data_utils.rand_name(
+            self.__class__.__name__ + '-volume')
+        new_vol_ref = {
+            'name': new_vol_name,
+            'host': org_vol_info['os-vol-host-attr:host'],
+            'ref': {CONF.volume.manage_volume_ref[0]:
+                    CONF.volume.manage_volume_ref[1] % org_vol_id},
+            'volume_type': org_vol_info['volume_type'],
+            'availability_zone': org_vol_info['availability_zone']}
+        new_vol_id = self.admin_volume_manage_client.manage_volume(
+            **new_vol_ref)['volume']['id']
+        self.addCleanup(self.delete_volume,
+                        self.admin_volume_client, new_vol_id)
+        waiters.wait_for_volume_resource_status(self.admin_volume_client,
+                                                new_vol_id, 'available')
+
+        # Compare the managed volume with the original
+        new_vol_info = self.admin_volume_client.show_volume(
+            new_vol_id)['volume']
+        self.assertNotIn(new_vol_id, [org_vol_id])
+        self.assertEqual(new_vol_info['name'], new_vol_name)
+        for key in ['size',
+                    'volume_type',
+                    'availability_zone',
+                    'os-vol-host-attr:host']:
+            self.assertEqual(new_vol_info[key], org_vol_info[key])
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index f794920..84eada7 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -230,6 +230,7 @@
         cls.admin_volume_services_client = \
             cls.os_adm.volume_services_v2_client
         cls.admin_volume_types_client = cls.os_adm.volume_types_v2_client
+        cls.admin_volume_manage_client = cls.os_adm.volume_manage_v2_client
         cls.admin_volume_client = cls.os_adm.volumes_v2_client
         cls.admin_hosts_client = cls.os_adm.volume_hosts_v2_client
         cls.admin_snapshot_manage_client = \
diff --git a/tempest/clients.py b/tempest/clients.py
index e75fa79..4d718aa 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -262,6 +262,7 @@
         self.snapshot_manage_v2_client = self.volume_v2.SnapshotManageClient()
         self.snapshots_client = self.volume_v1.SnapshotsClient()
         self.snapshots_v2_client = self.volume_v2.SnapshotsClient()
+        self.volume_manage_v2_client = self.volume_v2.VolumeManageClient()
         self.volumes_client = self.volume_v1.VolumesClient()
         self.volumes_v2_client = self.volume_v2.VolumesClient()
         self.volume_v3_messages_client = self.volume_v3.MessagesClient()
diff --git a/tempest/config.py b/tempest/config.py
index d5c8ea9..40891a6 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -767,6 +767,12 @@
     cfg.IntOpt('volume_size',
                default=1,
                help='Default size in GB for volumes created by volumes tests'),
+    cfg.ListOpt('manage_volume_ref',
+                default=['source-name', 'volume-%s'],
+                help="A reference to existing volume for volume manage. "
+                     "It contains two elements, the first is ref type "
+                     "(like 'source-name', 'source-id', etc), the second is "
+                     "volume name template used in storage backend"),
     cfg.StrOpt('min_microversion',
                default=None,
                help="Lower version of the test target microversion range. "
@@ -806,6 +812,9 @@
     cfg.BoolOpt('manage_snapshot',
                 default=False,
                 help='Runs Cinder manage snapshot tests'),
+    cfg.BoolOpt('manage_volume',
+                default=False,
+                help='Runs Cinder manage volume tests'),
     cfg.ListOpt('api_extensions',
                 default=['all'],
                 help='A list of enabled volume extensions with a special '
diff --git a/tempest/lib/services/volume/v2/__init__.py b/tempest/lib/services/volume/v2/__init__.py
index 8acad0f..b4eb771 100644
--- a/tempest/lib/services/volume/v2/__init__.py
+++ b/tempest/lib/services/volume/v2/__init__.py
@@ -31,10 +31,12 @@
     SnapshotManageClient
 from tempest.lib.services.volume.v2.snapshots_client import SnapshotsClient
 from tempest.lib.services.volume.v2.types_client import TypesClient
+from tempest.lib.services.volume.v2.volume_manage_client import \
+    VolumeManageClient
 from tempest.lib.services.volume.v2.volumes_client import VolumesClient
 
 __all__ = ['AvailabilityZoneClient', 'BackupsClient', 'EncryptionTypesClient',
            'ExtensionsClient', 'HostsClient', 'QosSpecsClient', 'QuotasClient',
            'ServicesClient', 'SnapshotsClient', 'TypesClient', 'VolumesClient',
            'LimitsClient', 'CapabilitiesClient', 'SchedulerStatsClient',
-           'SnapshotManageClient']
+           'SnapshotManageClient', 'VolumeManageClient']
diff --git a/tempest/lib/services/volume/v2/volume_manage_client.py b/tempest/lib/services/volume/v2/volume_manage_client.py
new file mode 100644
index 0000000..12f4240
--- /dev/null
+++ b/tempest/lib/services/volume/v2/volume_manage_client.py
@@ -0,0 +1,37 @@
+# Copyright 2017 FiberHome Telecommunication Technologies CO.,LTD
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from oslo_serialization import jsonutils as json
+
+from tempest.lib.common import rest_client
+
+
+class VolumeManageClient(rest_client.RestClient):
+    """Volume manage V2 client."""
+
+    api_version = "v2"
+
+    def manage_volume(self, **kwargs):
+        """Manage existing volume.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v2/#manage-existing-volume
+        """
+        post_body = json.dumps({'volume': kwargs})
+        resp, body = self.post('os-volume-manage', post_body)
+        self.expected_success(202, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/lib/services/volume/v2/volumes_client.py b/tempest/lib/services/volume/v2/volumes_client.py
index 8b8e249..2c109ea 100644
--- a/tempest/lib/services/volume/v2/volumes_client.py
+++ b/tempest/lib/services/volume/v2/volumes_client.py
@@ -351,3 +351,15 @@
         body = json.loads(body)
         self.expected_success(200, resp.status)
         return rest_client.ResponseBody(resp, body)
+
+    def unmanage_volume(self, volume_id):
+        """Unmanage volume.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v2/#unmanage-volume
+        """
+        post_body = json.dumps({'os-unmanage': {}})
+        resp, body = self.post('volumes/%s/action' % volume_id, post_body)
+        self.expected_success(202, resp.status)
+        return rest_client.ResponseBody(resp, body)