diff --git a/cinderclient/tests/unit/v2/test_volume_backups.py b/cinderclient/tests/unit/v2/test_volume_backups.py
index ac8be24eb..d493080a8 100644
--- a/cinderclient/tests/unit/v2/test_volume_backups.py
+++ b/cinderclient/tests/unit/v2/test_volume_backups.py
@@ -92,6 +92,32 @@ class VolumeBackupsTest(utils.TestCase):
                          '/backups/76a17945-3c6f-435c-975b-b5685db10b62')
         self._assert_request_id(del_back)
 
+    def test_force_delete_with_True_force_param_value(self):
+        """Tests delete backup with force parameter set to True"""
+        b = cs.backups.list()[0]
+        del_back = b.delete(force=True)
+        expected_body = {'os-force_delete': None}
+        cs.assert_called('POST',
+            '/backups/76a17945-3c6f-435c-975b-b5685db10b62/action',
+            expected_body)
+        self._assert_request_id(del_back)
+
+    def test_force_delete_with_false_force_param_vaule(self):
+        """To delete backup with force parameter set to False"""
+        b = cs.backups.list()[0]
+        del_back = b.delete(force=False)
+        cs.assert_called('DELETE',
+                         '/backups/76a17945-3c6f-435c-975b-b5685db10b62')
+        self._assert_request_id(del_back)
+        del_back = cs.backups.delete('76a17945-3c6f-435c-975b-b5685db10b62')
+        cs.assert_called('DELETE',
+                         '/backups/76a17945-3c6f-435c-975b-b5685db10b62')
+        self._assert_request_id(del_back)
+        del_back = cs.backups.delete(b)
+        cs.assert_called('DELETE',
+                         '/backups/76a17945-3c6f-435c-975b-b5685db10b62')
+        self._assert_request_id(del_back)
+
     def test_restore(self):
         backup_id = '76a17945-3c6f-435c-975b-b5685db10b62'
         info = cs.restores.restore(backup_id)
diff --git a/cinderclient/v3/shell.py b/cinderclient/v3/shell.py
index 96d27481f..b0fa4483a 100644
--- a/cinderclient/v3/shell.py
+++ b/cinderclient/v3/shell.py
@@ -1472,6 +1472,11 @@ def do_backup_list(cs, args):
     utils.print_list(backups, columns, sortby_index=sortby_index)
 
 
+@utils.arg('--force',
+           action="store_true",
+           help='Allows deleting backup of a volume '
+           'when its status is other than "available" or "error". '
+           'Default=False.')
 @utils.arg('backup', metavar='<backup>', nargs='+',
            help='Name or ID of backup(s) to delete.')
 @utils.service_type('volumev3')
@@ -1480,7 +1485,7 @@ def do_backup_delete(cs, args):
     failure_count = 0
     for backup in args.backup:
         try:
-            _find_backup(cs, backup).delete()
+            _find_backup(cs, backup).delete(args.force)
             print("Request to delete backup %s has been accepted." % (backup))
         except Exception as e:
             failure_count += 1
diff --git a/cinderclient/v3/volume_backups.py b/cinderclient/v3/volume_backups.py
index b264dec89..0941fb86b 100644
--- a/cinderclient/v3/volume_backups.py
+++ b/cinderclient/v3/volume_backups.py
@@ -26,9 +26,9 @@ class VolumeBackup(base.Resource):
     def __repr__(self):
         return "<VolumeBackup: %s>" % self.id
 
-    def delete(self):
+    def delete(self, force=False):
         """Delete this volume backup."""
-        return self.manager.delete(self)
+        return self.manager.delete(self, force)
 
     def reset_state(self, state):
         return self.manager.reset_state(self, state)
@@ -81,12 +81,16 @@ class VolumeBackupManager(base.ManagerWithFind):
                                    limit=limit, sort=sort)
         return self._list(url, resource_type, limit=limit)
 
-    def delete(self, backup):
+    def delete(self, backup, force=False):
         """Delete a volume backup.
 
         :param backup: The :class:`VolumeBackup` to delete.
+        :param force: Allow delete in state other than error or available.
         """
-        return self._delete("/backups/%s" % base.getid(backup))
+        if force:
+            return self._action('os-force_delete', backup)
+        else:
+            return self._delete("/backups/%s" % base.getid(backup))
 
     def reset_state(self, backup, state):
         """Update the specified volume backup with the provided state."""