diff --git a/nni/tools/nnictl/config_utils.py b/nni/tools/nnictl/config_utils.py
index 5cef7e2449..154b1d8ccb 100644
--- a/nni/tools/nnictl/config_utils.py
+++ b/nni/tools/nnictl/config_utils.py
@@ -108,7 +108,7 @@ def __init__(self, home_dir=NNI_HOME_DIR):
             self.experiments = self.read_file()
 
     def add_experiment(self, expId, port, startTime, platform, experiment_name, endTime='N/A', status='INITIALIZED',
-                       tag=[], pid=None, webuiUrl=[], logDir=''):
+                       tag=[], pid=None, webuiUrl=[], logDir='', prefixUrl=None):
         '''set {key:value} pairs to self.experiment'''
         with self.lock:
             self.experiments = self.read_file()
@@ -124,6 +124,7 @@ def add_experiment(self, expId, port, startTime, platform, experiment_name, endT
             self.experiments[expId]['pid'] = pid
             self.experiments[expId]['webuiUrl'] = webuiUrl
             self.experiments[expId]['logDir'] = str(logDir)
+            self.experiments[expId]['prefixUrl'] = prefixUrl
             self.write_file()
 
     def update_experiment(self, expId, key, value):
diff --git a/nni/tools/nnictl/launcher.py b/nni/tools/nnictl/launcher.py
index 7b2d20f9b8..e4d6a0966a 100644
--- a/nni/tools/nnictl/launcher.py
+++ b/nni/tools/nnictl/launcher.py
@@ -9,6 +9,7 @@
 import random
 import time
 import tempfile
+import re
 from subprocess import Popen, check_call, CalledProcessError, PIPE, STDOUT
 from nni.experiment.config import ExperimentConfig, convert
 from nni.tools.annotation import expand_annotations, generate_search_space
@@ -16,7 +17,7 @@
 import nni_node  # pylint: disable=import-error
 from .launcher_utils import validate_all_content
 from .rest_utils import rest_put, rest_post, check_rest_server, check_response
-from .url_utils import cluster_metadata_url, experiment_url, get_local_urls
+from .url_utils import cluster_metadata_url, experiment_url, get_local_urls, setPrefixUrl, formatURLPath
 from .config_utils import Config, Experiments
 from .common_utils import get_yml_content, get_json_content, print_error, print_normal, print_warning, \
                           detect_port, get_user
@@ -43,7 +44,7 @@ def print_log_content(config_file_name):
     print_normal(' Stderr:')
     print(check_output_command(stderr_full_path))
 
-def start_rest_server(port, platform, mode, experiment_id, foreground=False, log_dir=None, log_level=None):
+def start_rest_server(port, platform, mode, experiment_id, foreground=False, log_dir=None, log_level=None, url_prefix=None):
     '''Run nni manager process'''
     if detect_port(port):
         print_error('Port %s is used by another process, please reset the port!\n' \
@@ -81,6 +82,11 @@ def start_rest_server(port, platform, mode, experiment_id, foreground=False, log
         cmds += ['--log_level', log_level]
     if foreground:
         cmds += ['--foreground', 'true']
+    if url_prefix:
+        _validate_prefix_path(url_prefix)
+        setPrefixUrl(url_prefix)
+        cmds += ['--url_prefix', url_prefix]
+
     stdout_full_path, stderr_full_path = get_log_path(experiment_id)
     with open(stdout_full_path, 'a+') as stdout_file, open(stderr_full_path, 'a+') as stderr_file:
         start_time = time.time()
@@ -384,11 +390,12 @@ def launch_experiment(args, experiment_config, mode, experiment_id, config_versi
         platform = experiment_config['trainingService']['platform']
 
     rest_process, start_time = start_rest_server(args.port, platform, \
-                                                 mode, experiment_id, foreground, log_dir, log_level)
+                                                 mode, experiment_id, foreground, log_dir, log_level, args.url_prefix)
     # save experiment information
     Experiments().add_experiment(experiment_id, args.port, start_time,
                                  platform,
-                                 experiment_config.get('experimentName', 'N/A'), pid=rest_process.pid, logDir=log_dir)
+                                 experiment_config.get('experimentName', 'N/A')
+                                 , pid=rest_process.pid, logDir=log_dir, prefixUrl=args.url_prefix)
     # Deal with annotation
     if experiment_config.get('useAnnotation'):
         path = os.path.join(tempfile.gettempdir(), get_user(), 'nni', 'annotation')
@@ -446,9 +453,9 @@ def launch_experiment(args, experiment_config, mode, experiment_id, config_versi
             raise Exception(ERROR_INFO % 'Restful server stopped!')
         exit(1)
     if experiment_config.get('nniManagerIp'):
-        web_ui_url_list = ['http://{0}:{1}'.format(experiment_config['nniManagerIp'], str(args.port))]
+        web_ui_url_list = ['http://{0}:{1}{2}'.format(experiment_config['nniManagerIp'], str(args.port), formatURLPath(args.url_prefix))]
     else:
-        web_ui_url_list = get_local_urls(args.port)
+        web_ui_url_list = get_local_urls(args.port, args.url_prefix)
     Experiments().update_experiment(experiment_id, 'webuiUrl', web_ui_url_list)
 
     print_normal(EXPERIMENT_SUCCESS_INFO % (experiment_id, '   '.join(web_ui_url_list)))
@@ -476,6 +483,9 @@ def _validate_v2(config, path):
     except Exception as e:
         print_error(f'Config V2 validation failed: {repr(e)}')
 
+def _validate_prefix_path(path):
+    assert re.match("^[A-Za-z0-9_-]*$", path), "prefix url is invalid."
+
 def create_experiment(args):
     '''start a new experiment'''
     experiment_id = ''.join(random.sample(string.ascii_letters + string.digits, 8))
@@ -533,6 +543,7 @@ def manage_stopped_experiment(args, mode):
     print_normal('{0} experiment {1}...'.format(mode, experiment_id))
     experiment_config = Config(experiment_id, experiments_dict[args.id]['logDir']).get_config()
     experiments_config.update_experiment(args.id, 'port', args.port)
+    args.url_prefix = experiments_dict[args.id]['prefixUrl']
     assert 'trainingService' in experiment_config or 'trainingServicePlatform' in experiment_config
     try:
         if 'trainingServicePlatform' in experiment_config:
diff --git a/nni/tools/nnictl/nnictl.py b/nni/tools/nnictl/nnictl.py
index fd8697337e..d4b55d506a 100644
--- a/nni/tools/nnictl/nnictl.py
+++ b/nni/tools/nnictl/nnictl.py
@@ -54,6 +54,7 @@ def parse_args():
     parser_start.add_argument('--config', '-c', required=True, dest='config', help='the path of yaml config file')
     parser_start.add_argument('--port', '-p', default=DEFAULT_REST_PORT, dest='port', type=int, help='the port of restful server')
     parser_start.add_argument('--debug', '-d', action='store_true', help=' set debug mode')
+    parser_start.add_argument('--url_prefix', '-u', dest='url_prefix', help=' set prefix url')
     parser_start.add_argument('--foreground', '-f', action='store_true', help=' set foreground mode, print log content to terminal')
     parser_start.set_defaults(func=create_experiment)
 
diff --git a/nni/tools/nnictl/url_utils.py b/nni/tools/nnictl/url_utils.py
index 59a28837a6..71af16de68 100644
--- a/nni/tools/nnictl/url_utils.py
+++ b/nni/tools/nnictl/url_utils.py
@@ -24,6 +24,13 @@
 
 METRIC_DATA_API = '/metric-data'
 
+def formatURLPath(path):
+    return '' if path is None else '/{0}'.format(path)
+
+def setPrefixUrl(prefix_path):
+    global API_ROOT_URL
+    API_ROOT_URL = formatURLPath(prefix_path)
+
 def metric_data_url(port):
     '''get metric_data url'''
     return '{0}:{1}{2}{3}'.format(BASE_URL, port, API_ROOT_URL, METRIC_DATA_API)
@@ -60,7 +67,7 @@ def trial_job_id_url(port, job_id):
 
 def export_data_url(port):
     '''get export_data url'''
-    return '{0}:{1}{2}{3}'.format(BASE_URL, port, API_ROOT_URL, EXPORT_DATA_API)
+    return '{0}:{1}{2}{3}{4}'.format(BASE_URL, port, API_ROOT_URL, EXPORT_DATA_API)
 
 
 def tensorboard_url(port):
@@ -68,11 +75,11 @@ def tensorboard_url(port):
     return '{0}:{1}{2}{3}'.format(BASE_URL, port, API_ROOT_URL, TENSORBOARD_API)
 
 
-def get_local_urls(port):
+def get_local_urls(port,prefix):
     '''get urls of local machine'''
     url_list = []
     for _, info in psutil.net_if_addrs().items():
         for addr in info:
             if socket.AddressFamily.AF_INET == addr.family:
-                url_list.append('http://{}:{}'.format(addr.address, port))
+                url_list.append('http://{0}:{1}{2}'.format(addr.address, port, formatURLPath(prefix)))
     return url_list
diff --git a/ts/nni_manager/common/experimentStartupInfo.ts b/ts/nni_manager/common/experimentStartupInfo.ts
index 5316abd26e..18d412869d 100644
--- a/ts/nni_manager/common/experimentStartupInfo.ts
+++ b/ts/nni_manager/common/experimentStartupInfo.ts
@@ -10,6 +10,8 @@ import * as component from '../common/component';
 
 @component.Singleton
 class ExperimentStartupInfo {
+    private readonly API_ROOT_URL: string = '/api/v1/nni';
+
     private experimentId: string = '';
     private newExperiment: boolean = true;
     private basePort: number = -1;
@@ -19,8 +21,9 @@ class ExperimentStartupInfo {
     private readonly: boolean = false;
     private dispatcherPipe: string | null = null;
     private platform: string = '';
+    private urlprefix: string = '';
 
-    public setStartupInfo(newExperiment: boolean, experimentId: string, basePort: number, platform: string, logDir?: string, logLevel?: string, readonly?: boolean, dispatcherPipe?: string): void {
+    public setStartupInfo(newExperiment: boolean, experimentId: string, basePort: number, platform: string, logDir?: string, logLevel?: string, readonly?: boolean, dispatcherPipe?: string, urlprefix?: string): void {
         assert(!this.initialized);
         assert(experimentId.trim().length > 0);
         this.newExperiment = newExperiment;
@@ -46,6 +49,10 @@ class ExperimentStartupInfo {
         if (dispatcherPipe != undefined && dispatcherPipe.length > 0) {
             this.dispatcherPipe = dispatcherPipe;
         }
+
+        if(urlprefix != undefined && urlprefix.length > 0){
+            this.urlprefix = urlprefix;
+        }
     }
 
     public getExperimentId(): string {
@@ -94,6 +101,11 @@ class ExperimentStartupInfo {
         assert(this.initialized);
         return this.dispatcherPipe;
     }
+
+    public getAPIRootUrl(): string {
+        assert(this.initialized);
+        return this.urlprefix==''?this.API_ROOT_URL:`/${this.urlprefix}`;
+    }
 }
 
 function getExperimentId(): string {
@@ -117,9 +129,9 @@ function getExperimentStartupInfo(): ExperimentStartupInfo {
 }
 
 function setExperimentStartupInfo(
-    newExperiment: boolean, experimentId: string, basePort: number, platform: string, logDir?: string, logLevel?: string, readonly?: boolean, dispatcherPipe?: string): void {
+    newExperiment: boolean, experimentId: string, basePort: number, platform: string, logDir?: string, logLevel?: string, readonly?: boolean, dispatcherPipe?: string, urlprefix?: string): void {
     component.get<ExperimentStartupInfo>(ExperimentStartupInfo)
-        .setStartupInfo(newExperiment, experimentId, basePort, platform, logDir, logLevel, readonly, dispatcherPipe);
+        .setStartupInfo(newExperiment, experimentId, basePort, platform, logDir, logLevel, readonly, dispatcherPipe, urlprefix);
 }
 
 function isReadonly(): boolean {
@@ -130,7 +142,11 @@ function getDispatcherPipe(): string | null {
     return component.get<ExperimentStartupInfo>(ExperimentStartupInfo).getDispatcherPipe();
 }
 
+function getAPIRootUrl(): string {
+    return component.get<ExperimentStartupInfo>(ExperimentStartupInfo).getAPIRootUrl();
+}
+
 export {
     ExperimentStartupInfo, getBasePort, getExperimentId, isNewExperiment, getPlatform, getExperimentStartupInfo,
-    setExperimentStartupInfo, isReadonly, getDispatcherPipe
+    setExperimentStartupInfo, isReadonly, getDispatcherPipe, getAPIRootUrl
 };
diff --git a/ts/nni_manager/main.ts b/ts/nni_manager/main.ts
index 3b6c9bae90..c104c3a190 100644
--- a/ts/nni_manager/main.ts
+++ b/ts/nni_manager/main.ts
@@ -25,9 +25,9 @@ import { NNIRestServer } from './rest_server/nniRestServer';
 
 function initStartupInfo(
     startExpMode: string, experimentId: string, basePort: number, platform: string,
-    logDirectory: string, experimentLogLevel: string, readonly: boolean, dispatcherPipe: string): void {
+    logDirectory: string, experimentLogLevel: string, readonly: boolean, dispatcherPipe: string, urlprefix: string): void {
     const createNew: boolean = (startExpMode === ExperimentStartUpMode.NEW);
-    setExperimentStartupInfo(createNew, experimentId, basePort, platform, logDirectory, experimentLogLevel, readonly, dispatcherPipe);
+    setExperimentStartupInfo(createNew, experimentId, basePort, platform, logDirectory, experimentLogLevel, readonly, dispatcherPipe, urlprefix);
 }
 
 async function initContainer(foreground: boolean, platformMode: string, logFileName?: string): Promise<void> {
@@ -122,7 +122,9 @@ const readonly = readonlyArg.toLowerCase() == 'true' ? true : false;
 
 const dispatcherPipe: string = parseArg(['--dispatcher_pipe']);
 
-initStartupInfo(startMode, experimentId, port, mode, logDir, logLevel, readonly, dispatcherPipe);
+const urlPrefix: string = parseArg(['--url_prefix']);
+
+initStartupInfo(startMode, experimentId, port, mode, logDir, logLevel, readonly, dispatcherPipe, urlPrefix);
 
 mkDirP(getLogDir())
     .then(async () => {
diff --git a/ts/nni_manager/rest_server/nniRestServer.ts b/ts/nni_manager/rest_server/nniRestServer.ts
index d9e185773b..cc8c016c94 100644
--- a/ts/nni_manager/rest_server/nniRestServer.ts
+++ b/ts/nni_manager/rest_server/nniRestServer.ts
@@ -10,6 +10,7 @@ import * as component from '../common/component';
 import { RestServer } from '../common/restServer'
 import { getLogDir } from '../common/utils';
 import { createRestHandler } from './restHandler';
+import { getAPIRootUrl } from '../common/experimentStartupInfo';
 
 /**
  * NNI Main rest server, provides rest API to support
@@ -19,14 +20,15 @@ import { createRestHandler } from './restHandler';
  */
 @component.Singleton
 export class NNIRestServer extends RestServer {
-    private readonly API_ROOT_URL: string = '/api/v1/nni';
     private readonly LOGS_ROOT_URL: string = '/logs';
+    protected API_ROOT_URL: string = '/api/v1/nni';
 
     /**
      * constructor to provide NNIRestServer's own rest property, e.g. port
      */
     constructor() {
         super();
+        this.API_ROOT_URL = getAPIRootUrl();
     }
 
     /**