diff --git a/python/examples/imagenet/README.md b/python/examples/imagenet/README.md
index 52518d211a4350284cea19546fb3e55d49fc265f..0a6ed1c610c7bbcc1c73c8e610d60117816c8915 100644
--- a/python/examples/imagenet/README.md
+++ b/python/examples/imagenet/README.md
@@ -15,34 +15,35 @@ sh get_model.sh
 pip install paddle_serving_app
 ```
 
-### HTTP Infer
+### HTTP Service
 
 launch server side
 ```
-python image_classification_service.py ResNet50_vd_model workdir 9393 #cpu inference service
+python image_classification_service.py ResNet50_vd_model cpu 9696 #cpu inference service
 ```
 ```
-python image_classification_service_gpu.py ResNet50_vd_model workdir 9393 #gpu inference service
+python image_classification_service.py ResNet50_vd_model gpu 9696 #gpu inference service
 ```
 
 
 client send inference request
 ```
-python image_http_client.py
+curl -H "Content-Type:application/json" -X POST -d '{"feed":[{"image": "https://paddle-serving.bj.bcebos.com/imagenet-example/daisy.jpg"}], "fetch": ["score"]}' http://127.0.0.1:9696/image/prediction
 ```
-### RPC Infer
+
+### RPC Service
 
 launch server side
 ```
-python -m paddle_serving_server.serve --model ResNet50_vd_model --port 9393 #cpu inference service
+python -m paddle_serving_server.serve --model ResNet50_vd_model --port 9696 #cpu inference service
 ```
 
 ```
-python -m paddle_serving_server_gpu.serve --model ResNet50_vd_model --port 9393 --gpu_ids 0 #gpu inference service
+python -m paddle_serving_server_gpu.serve --model ResNet50_vd_model --port 9696 --gpu_ids 0 #gpu inference service
 ```
 
 client send inference request
 ```
 python image_rpc_client.py ResNet50_vd_client_config/serving_client_conf.prototxt
 ```
-*the port of server side in this example is 9393, the sample data used by client side is in the folder ./data. These parameter can be modified in practice*
+*the port of server side in this example is 9696
diff --git a/python/examples/imagenet/README_CN.md b/python/examples/imagenet/README_CN.md
index 3b865cf91ecb62dacd0be5d35fa97bc2e0d50ce3..c34ccca32b737467e687dfd5e86c3229f4339075 100644
--- a/python/examples/imagenet/README_CN.md
+++ b/python/examples/imagenet/README_CN.md
@@ -15,34 +15,35 @@ sh get_model.sh
 pip install paddle_serving_app
 ```
 
-### 执行HTTP预测服务
+### HTTP服务
 
 启动server端
 ```
-python image_classification_service.py ResNet50_vd_model workdir 9393 #cpu预测服务
+python image_classification_service.py ResNet50_vd_model cpu 9696 #cpu预测服务
 ```
 ```
-python image_classification_service_gpu.py ResNet50_vd_model workdir 9393 #gpu预测服务
+python image_classification_service.py ResNet50_vd_model gpu 9696 #gpu预测服务
 ```
 
 
-client端进行预测
+发送HTTP POST请求
 ```
-python image_http_client.py
+curl -H "Content-Type:application/json" -X POST -d '{"feed":[{"image": "https://paddle-serving.bj.bcebos.com/imagenet-example/daisy.jpg"}], "fetch": ["score"]}' http://127.0.0.1:9696/image/prediction
 ```
-### 执行RPC预测服务
+
+### RPC服务
 
 启动server端
 ```
-python -m paddle_serving_server.serve --model ResNet50_vd_model --port 9393 #cpu预测服务
+python -m paddle_serving_server.serve --model ResNet50_vd_model --port 9696 #cpu预测服务
 ```
 
 ```
-python -m paddle_serving_server_gpu.serve --model ResNet50_vd_model --port 9393 --gpu_ids 0 #gpu预测服务
+python -m paddle_serving_server_gpu.serve --model ResNet50_vd_model --port 9696 --gpu_ids 0 #gpu预测服务
 ```
 
 client端进行预测
 ```
 python image_rpc_client.py ResNet50_vd_client_config/serving_client_conf.prototxt
 ```
-*server端示例中服务端口为9393端口，client端示例中数据来自./data文件夹，server端地址为本地9393端口，可根据实际情况更改脚本。*
+*server端示例中服务端口为9696端口
diff --git a/python/examples/imagenet/image_http_client.py b/python/examples/imagenet/image_http_client.py
deleted file mode 100644
index 61b021be246dc4b843e608dcea21418419731b49..0000000000000000000000000000000000000000
--- a/python/examples/imagenet/image_http_client.py
+++ /dev/null
@@ -1,48 +0,0 @@
-# Copyright (c) 2020 PaddlePaddle Authors. 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.
-
-import requests
-import base64
-import json
-import time
-import os
-import sys
-
-py_version = sys.version_info[0]
-
-
-def predict(image_path, server):
-    if py_version == 2:
-        image = base64.b64encode(open(image_path).read())
-    else:
-        image = base64.b64encode(open(image_path, "rb").read()).decode("utf-8")
-    req = json.dumps({"feed": [{"image": image}], "fetch": ["score"]})
-    r = requests.post(
-        server, data=req, headers={"Content-Type": "application/json"})
-    try:
-        print(r.json()["result"]["score"])
-    except ValueError:
-        print(r.text)
-    return r
-
-
-if __name__ == "__main__":
-    server = "http://127.0.0.1:9393/image/prediction"
-    image_list = os.listdir("./image_data/n01440764/")
-    start = time.time()
-    for img in image_list:
-        image_file = "./image_data/n01440764/" + img
-        res = predict(image_file, server)
-    end = time.time()
-    print(end - start)
diff --git a/python/examples/imagenet/image_rpc_client.py b/python/examples/imagenet/image_rpc_client.py
index 4d74d2ed26a757a6f7978d8071286d3d4bcd5dfb..7888ab6302b483672ec1d7270f7db0c551f1778d 100644
--- a/python/examples/imagenet/image_rpc_client.py
+++ b/python/examples/imagenet/image_rpc_client.py
@@ -14,23 +14,35 @@
 
 import sys
 from paddle_serving_client import Client
-from paddle_serving_app.reader import Sequential, File2Image, Resize, CenterCrop, RGB2BGR, Transpose, Div, Normalize
+from paddle_serving_app.reader import Sequential, URL2Image, Resize
+from paddle_serving_app.reader import CenterCrop, RGB2BGR, Transpose, Div, Normalize
 import time
 
 client = Client()
 client.load_client_config(sys.argv[1])
-client.connect(["127.0.0.1:9393"])
+client.connect(["127.0.0.1:9696"])
+
+label_dict = {}
+label_idx = 0
+with open("imagenet.label") as fin:
+    for line in fin:
+        label_dict[label_idx] = line.strip()
+        label_idx += 1
 
 seq = Sequential([
-    File2Image(), Resize(256), CenterCrop(224), RGB2BGR(), Transpose((2, 0, 1)),
-    Div(255), Normalize([0.485, 0.456, 0.406], [0.229, 0.224, 0.225])
+    URL2Image(), Resize(256), CenterCrop(224), RGB2BGR(), Transpose((2, 0, 1)),
+    Div(255), Normalize([0.485, 0.456, 0.406], [0.229, 0.224, 0.225], True)
 ])
-print(seq)
 
 start = time.time()
-image_file = "daisy.jpg"
-for i in range(1000):
+image_file = "https://paddle-serving.bj.bcebos.com/imagenet-example/daisy.jpg"
+for i in range(10):
     img = seq(image_file)
     fetch_map = client.predict(feed={"image": img}, fetch=["score"])
+    prob = max(fetch_map["score"][0])
+    label = label_dict[fetch_map["score"][0].tolist().index(prob)].strip(
+    ).replace(",", "")
+    print("prediction: {}, probability: {}".format(label, prob))
+
 end = time.time()
 print(end - start)
diff --git a/python/examples/imagenet/imagenet.label b/python/examples/imagenet/imagenet.label
new file mode 100644
index 0000000000000000000000000000000000000000..d7146735146ea1894173d6d0e20fb90af36be849
--- /dev/null
+++ b/python/examples/imagenet/imagenet.label
@@ -0,0 +1,1000 @@
+tench, Tinca tinca,
+goldfish, Carassius auratus,
+great white shark, white shark, man-eater, man-eating shark, Carcharodon carcharias,
+tiger shark, Galeocerdo cuvieri,
+hammerhead, hammerhead shark,
+electric ray, crampfish, numbfish, torpedo,
+stingray,
+cock,
+hen,
+ostrich, Struthio camelus,
+brambling, Fringilla montifringilla,
+goldfinch, Carduelis carduelis,
+house finch, linnet, Carpodacus mexicanus,
+junco, snowbird,
+indigo bunting, indigo finch, indigo bird, Passerina cyanea,
+robin, American robin, Turdus migratorius,
+bulbul,
+jay,
+magpie,
+chickadee,
+water ouzel, dipper,
+kite,
+bald eagle, American eagle, Haliaeetus leucocephalus,
+vulture,
+great grey owl, great gray owl, Strix nebulosa,
+European fire salamander, Salamandra salamandra,
+common newt, Triturus vulgaris,
+eft,
+spotted salamander, Ambystoma maculatum,
+axolotl, mud puppy, Ambystoma mexicanum,
+bullfrog, Rana catesbeiana,
+tree frog, tree-frog,
+tailed frog, bell toad, ribbed toad, tailed toad, Ascaphus trui,
+loggerhead, loggerhead turtle, Caretta caretta,
+leatherback turtle, leatherback, leathery turtle, Dermochelys coriacea,
+mud turtle,
+terrapin,
+box turtle, box tortoise,
+banded gecko,
+common iguana, iguana, Iguana iguana,
+American chameleon, anole, Anolis carolinensis,
+whiptail, whiptail lizard,
+agama,
+frilled lizard, Chlamydosaurus kingi,
+alligator lizard,
+Gila monster, Heloderma suspectum,
+green lizard, Lacerta viridis,
+African chameleon, Chamaeleo chamaeleon,
+Komodo dragon, Komodo lizard, dragon lizard, giant lizard, Varanus komodoensis,
+African crocodile, Nile crocodile, Crocodylus niloticus,
+American alligator, Alligator mississipiensis,
+triceratops,
+thunder snake, worm snake, Carphophis amoenus,
+ringneck snake, ring-necked snake, ring snake,
+hognose snake, puff adder, sand viper,
+green snake, grass snake,
+king snake, kingsnake,
+garter snake, grass snake,
+water snake,
+vine snake,
+night snake, Hypsiglena torquata,
+boa constrictor, Constrictor constrictor,
+rock python, rock snake, Python sebae,
+Indian cobra, Naja naja,
+green mamba,
+sea snake,
+horned viper, cerastes, sand viper, horned asp, Cerastes cornutus,
+diamondback, diamondback rattlesnake, Crotalus adamanteus,
+sidewinder, horned rattlesnake, Crotalus cerastes,
+trilobite,
+harvestman, daddy longlegs, Phalangium opilio,
+scorpion,
+black and gold garden spider, Argiope aurantia,
+barn spider, Araneus cavaticus,
+garden spider, Aranea diademata,
+black widow, Latrodectus mactans,
+tarantula,
+wolf spider, hunting spider,
+tick,
+centipede,
+black grouse,
+ptarmigan,
+ruffed grouse, partridge, Bonasa umbellus,
+prairie chicken, prairie grouse, prairie fowl,
+peacock,
+quail,
+partridge,
+African grey, African gray, Psittacus erithacus,
+macaw,
+sulphur-crested cockatoo, Kakatoe galerita, Cacatua galerita,
+lorikeet,
+coucal,
+bee eater,
+hornbill,
+hummingbird,
+jacamar,
+toucan,
+drake,
+red-breasted merganser, Mergus serrator,
+goose,
+black swan, Cygnus atratus,
+tusker,
+echidna, spiny anteater, anteater,
+platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus,
+wallaby, brush kangaroo,
+koala, koala bear, kangaroo bear, native bear, Phascolarctos cinereus,
+wombat,
+jellyfish,
+sea anemone, anemone,
+brain coral,
+flatworm, platyhelminth,
+nematode, nematode worm, roundworm,
+conch,
+snail,
+slug,
+sea slug, nudibranch,
+chiton, coat-of-mail shell, sea cradle, polyplacophore,
+chambered nautilus, pearly nautilus, nautilus,
+Dungeness crab, Cancer magister,
+rock crab, Cancer irroratus,
+fiddler crab,
+king crab, Alaska crab, Alaskan king crab, Alaska king crab, Paralithodes camtschatica,
+American lobster, Northern lobster, Maine lobster, Homarus americanus,
+spiny lobster, langouste, rock lobster, crawfish, crayfish, sea crawfish,
+crayfish, crawfish, crawdad, crawdaddy,
+hermit crab,
+isopod,
+white stork, Ciconia ciconia,
+black stork, Ciconia nigra,
+spoonbill,
+flamingo,
+little blue heron, Egretta caerulea,
+American egret, great white heron, Egretta albus,
+bittern,
+crane,
+limpkin, Aramus pictus,
+European gallinule, Porphyrio porphyrio,
+American coot, marsh hen, mud hen, water hen, Fulica americana,
+bustard,
+ruddy turnstone, Arenaria interpres,
+red-backed sandpiper, dunlin, Erolia alpina,
+redshank, Tringa totanus,
+dowitcher,
+oystercatcher, oyster catcher,
+pelican,
+king penguin, Aptenodytes patagonica,
+albatross, mollymawk,
+grey whale, gray whale, devilfish, Eschrichtius gibbosus, Eschrichtius robustus,
+killer whale, killer, orca, grampus, sea wolf, Orcinus orca,
+dugong, Dugong dugon,
+sea lion,
+Chihuahua,
+Japanese spaniel,
+Maltese dog, Maltese terrier, Maltese,
+Pekinese, Pekingese, Peke,
+Shih-Tzu,
+Blenheim spaniel,
+papillon,
+toy terrier,
+Rhodesian ridgeback,
+Afghan hound, Afghan,
+basset, basset hound,
+beagle,
+bloodhound, sleuthhound,
+bluetick,
+black-and-tan coonhound,
+Walker hound, Walker foxhound,
+English foxhound,
+redbone,
+borzoi, Russian wolfhound,
+Irish wolfhound,
+Italian greyhound,
+whippet,
+Ibizan hound, Ibizan Podenco,
+Norwegian elkhound, elkhound,
+otterhound, otter hound,
+Saluki, gazelle hound,
+Scottish deerhound, deerhound,
+Weimaraner,
+Staffordshire bullterrier, Staffordshire bull terrier,
+American Staffordshire terrier, Staffordshire terrier, American pit bull terrier, pit bull terrier,
+Bedlington terrier,
+Border terrier,
+Kerry blue terrier,
+Irish terrier,
+Norfolk terrier,
+Norwich terrier,
+Yorkshire terrier,
+wire-haired fox terrier,
+Lakeland terrier,
+Sealyham terrier, Sealyham,
+Airedale, Airedale terrier,
+cairn, cairn terrier,
+Australian terrier,
+Dandie Dinmont, Dandie Dinmont terrier,
+Boston bull, Boston terrier,
+miniature schnauzer,
+giant schnauzer,
+standard schnauzer,
+Scotch terrier, Scottish terrier, Scottie,
+Tibetan terrier, chrysanthemum dog,
+silky terrier, Sydney silky,
+soft-coated wheaten terrier,
+West Highland white terrier,
+Lhasa, Lhasa apso,
+flat-coated retriever,
+curly-coated retriever,
+golden retriever,
+Labrador retriever,
+Chesapeake Bay retriever,
+German short-haired pointer,
+vizsla, Hungarian pointer,
+English setter,
+Irish setter, red setter,
+Gordon setter,
+Brittany spaniel,
+clumber, clumber spaniel,
+English springer, English springer spaniel,
+Welsh springer spaniel,
+cocker spaniel, English cocker spaniel, cocker,
+Sussex spaniel,
+Irish water spaniel,
+kuvasz,
+schipperke,
+groenendael,
+malinois,
+briard,
+kelpie,
+komondor,
+Old English sheepdog, bobtail,
+Shetland sheepdog, Shetland sheep dog, Shetland,
+collie,
+Border collie,
+Bouvier des Flandres, Bouviers des Flandres,
+Rottweiler,
+German shepherd, German shepherd dog, German police dog, alsatian,
+Doberman, Doberman pinscher,
+miniature pinscher,
+Greater Swiss Mountain dog,
+Bernese mountain dog,
+Appenzeller,
+EntleBucher,
+boxer,
+bull mastiff,
+Tibetan mastiff,
+French bulldog,
+Great Dane,
+Saint Bernard, St Bernard,
+Eskimo dog, husky,
+malamute, malemute, Alaskan malamute,
+Siberian husky,
+dalmatian, coach dog, carriage dog,
+affenpinscher, monkey pinscher, monkey dog,
+basenji,
+pug, pug-dog,
+Leonberg,
+Newfoundland, Newfoundland dog,
+Great Pyrenees,
+Samoyed, Samoyede,
+Pomeranian,
+chow, chow chow,
+keeshond,
+Brabancon griffon,
+Pembroke, Pembroke Welsh corgi,
+Cardigan, Cardigan Welsh corgi,
+toy poodle,
+miniature poodle,
+standard poodle,
+Mexican hairless,
+timber wolf, grey wolf, gray wolf, Canis lupus,
+white wolf, Arctic wolf, Canis lupus tundrarum,
+red wolf, maned wolf, Canis rufus, Canis niger,
+coyote, prairie wolf, brush wolf, Canis latrans,
+dingo, warrigal, warragal, Canis dingo,
+dhole, Cuon alpinus,
+African hunting dog, hyena dog, Cape hunting dog, Lycaon pictus,
+hyena, hyaena,
+red fox, Vulpes vulpes,
+kit fox, Vulpes macrotis,
+Arctic fox, white fox, Alopex lagopus,
+grey fox, gray fox, Urocyon cinereoargenteus,
+tabby, tabby cat,
+tiger cat,
+Persian cat,
+Siamese cat, Siamese,
+Egyptian cat,
+cougar, puma, catamount, mountain lion, painter, panther, Felis concolor,
+lynx, catamount,
+leopard, Panthera pardus,
+snow leopard, ounce, Panthera uncia,
+jaguar, panther, Panthera onca, Felis onca,
+lion, king of beasts, Panthera leo,
+tiger, Panthera tigris,
+cheetah, chetah, Acinonyx jubatus,
+brown bear, bruin, Ursus arctos,
+American black bear, black bear, Ursus americanus, Euarctos americanus,
+ice bear, polar bear, Ursus Maritimus, Thalarctos maritimus,
+sloth bear, Melursus ursinus, Ursus ursinus,
+mongoose,
+meerkat, mierkat,
+tiger beetle,
+ladybug, ladybeetle, lady beetle, ladybird, ladybird beetle,
+ground beetle, carabid beetle,
+long-horned beetle, longicorn, longicorn beetle,
+leaf beetle, chrysomelid,
+dung beetle,
+rhinoceros beetle,
+weevil,
+fly,
+bee,
+ant, emmet, pismire,
+grasshopper, hopper,
+cricket,
+walking stick, walkingstick, stick insect,
+cockroach, roach,
+mantis, mantid,
+cicada, cicala,
+leafhopper,
+lacewing, lacewing fly,
+"dragonfly, darning needle, devils darning needle, sewing needle, snake feeder, snake doctor, mosquito hawk, skeeter hawk",
+damselfly,
+admiral,
+ringlet, ringlet butterfly,
+monarch, monarch butterfly, milkweed butterfly, Danaus plexippus,
+cabbage butterfly,
+sulphur butterfly, sulfur butterfly,
+lycaenid, lycaenid butterfly,
+starfish, sea star,
+sea urchin,
+sea cucumber, holothurian,
+wood rabbit, cottontail, cottontail rabbit,
+hare,
+Angora, Angora rabbit,
+hamster,
+porcupine, hedgehog,
+fox squirrel, eastern fox squirrel, Sciurus niger,
+marmot,
+beaver,
+guinea pig, Cavia cobaya,
+sorrel,
+zebra,
+hog, pig, grunter, squealer, Sus scrofa,
+wild boar, boar, Sus scrofa,
+warthog,
+hippopotamus, hippo, river horse, Hippopotamus amphibius,
+ox,
+water buffalo, water ox, Asiatic buffalo, Bubalus bubalis,
+bison,
+ram, tup,
+bighorn, bighorn sheep, cimarron, Rocky Mountain bighorn, Rocky Mountain sheep, Ovis canadensis,
+ibex, Capra ibex,
+hartebeest,
+impala, Aepyceros melampus,
+gazelle,
+Arabian camel, dromedary, Camelus dromedarius,
+llama,
+weasel,
+mink,
+polecat, fitch, foulmart, foumart, Mustela putorius,
+black-footed ferret, ferret, Mustela nigripes,
+otter,
+skunk, polecat, wood pussy,
+badger,
+armadillo,
+three-toed sloth, ai, Bradypus tridactylus,
+orangutan, orang, orangutang, Pongo pygmaeus,
+gorilla, Gorilla gorilla,
+chimpanzee, chimp, Pan troglodytes,
+gibbon, Hylobates lar,
+siamang, Hylobates syndactylus, Symphalangus syndactylus,
+guenon, guenon monkey,
+patas, hussar monkey, Erythrocebus patas,
+baboon,
+macaque,
+langur,
+colobus, colobus monkey,
+proboscis monkey, Nasalis larvatus,
+marmoset,
+capuchin, ringtail, Cebus capucinus,
+howler monkey, howler,
+titi, titi monkey,
+spider monkey, Ateles geoffroyi,
+squirrel monkey, Saimiri sciureus,
+Madagascar cat, ring-tailed lemur, Lemur catta,
+indri, indris, Indri indri, Indri brevicaudatus,
+Indian elephant, Elephas maximus,
+African elephant, Loxodonta africana,
+lesser panda, red panda, panda, bear cat, cat bear, Ailurus fulgens,
+giant panda, panda, panda bear, coon bear, Ailuropoda melanoleuca,
+barracouta, snoek,
+eel,
+coho, cohoe, coho salmon, blue jack, silver salmon, Oncorhynchus kisutch,
+rock beauty, Holocanthus tricolor,
+anemone fish,
+sturgeon,
+gar, garfish, garpike, billfish, Lepisosteus osseus,
+lionfish,
+puffer, pufferfish, blowfish, globefish,
+abacus,
+abaya,
+"academic gown, academic robe, judges robe",
+accordion, piano accordion, squeeze box,
+acoustic guitar,
+aircraft carrier, carrier, flattop, attack aircraft carrier,
+airliner,
+airship, dirigible,
+altar,
+ambulance,
+amphibian, amphibious vehicle,
+analog clock,
+apiary, bee house,
+apron,
+ashcan, trash can, garbage can, wastebin, ash bin, ash-bin, ashbin, dustbin, trash barrel, trash bin,
+assault rifle, assault gun,
+backpack, back pack, knapsack, packsack, rucksack, haversack,
+bakery, bakeshop, bakehouse,
+balance beam, beam,
+balloon,
+ballpoint, ballpoint pen, ballpen, Biro,
+Band Aid,
+banjo,
+bannister, banister, balustrade, balusters, handrail,
+barbell,
+barber chair,
+barbershop,
+barn,
+barometer,
+barrel, cask,
+barrow, garden cart, lawn cart, wheelbarrow,
+baseball,
+basketball,
+bassinet,
+bassoon,
+bathing cap, swimming cap,
+bath towel,
+bathtub, bathing tub, bath, tub,
+beach wagon, station wagon, wagon, estate car, beach waggon, station waggon, waggon,
+beacon, lighthouse, beacon light, pharos,
+beaker,
+bearskin, busby, shako,
+beer bottle,
+beer glass,
+bell cote, bell cot,
+bib,
+bicycle-built-for-two, tandem bicycle, tandem,
+bikini, two-piece,
+binder, ring-binder,
+binoculars, field glasses, opera glasses,
+birdhouse,
+boathouse,
+bobsled, bobsleigh, bob,
+bolo tie, bolo, bola tie, bola,
+bonnet, poke bonnet,
+bookcase,
+bookshop, bookstore, bookstall,
+bottlecap,
+bow,
+bow tie, bow-tie, bowtie,
+brass, memorial tablet, plaque,
+brassiere, bra, bandeau,
+breakwater, groin, groyne, mole, bulwark, seawall, jetty,
+breastplate, aegis, egis,
+broom,
+bucket, pail,
+buckle,
+bulletproof vest,
+bullet train, bullet,
+butcher shop, meat market,
+cab, hack, taxi, taxicab,
+caldron, cauldron,
+candle, taper, wax light,
+cannon,
+canoe,
+can opener, tin opener,
+cardigan,
+car mirror,
+carousel, carrousel, merry-go-round, roundabout, whirligig,
+"carpenters kit, tool kit",
+carton,
+car wheel,
+cash machine, cash dispenser, automated teller machine, automatic teller machine, automated teller, automatic teller, ATM,
+cassette,
+cassette player,
+castle,
+catamaran,
+CD player,
+cello, violoncello,
+cellular telephone, cellular phone, cellphone, cell, mobile phone,
+chain,
+chainlink fence,
+chain mail, ring mail, mail, chain armor, chain armour, ring armor, ring armour,
+chain saw, chainsaw,
+chest,
+chiffonier, commode,
+chime, bell, gong,
+china cabinet, china closet,
+Christmas stocking,
+church, church building,
+cinema, movie theater, movie theatre, movie house, picture palace,
+cleaver, meat cleaver, chopper,
+cliff dwelling,
+cloak,
+clog, geta, patten, sabot,
+cocktail shaker,
+coffee mug,
+coffeepot,
+coil, spiral, volute, whorl, helix,
+combination lock,
+computer keyboard, keypad,
+confectionery, confectionary, candy store,
+container ship, containership, container vessel,
+convertible,
+corkscrew, bottle screw,
+cornet, horn, trumpet, trump,
+cowboy boot,
+cowboy hat, ten-gallon hat,
+cradle,
+crane,
+crash helmet,
+crate,
+crib, cot,
+Crock Pot,
+croquet ball,
+crutch,
+cuirass,
+dam, dike, dyke,
+desk,
+desktop computer,
+dial telephone, dial phone,
+diaper, nappy, napkin,
+digital clock,
+digital watch,
+dining table, board,
+dishrag, dishcloth,
+dishwasher, dish washer, dishwashing machine,
+disk brake, disc brake,
+dock, dockage, docking facility,
+dogsled, dog sled, dog sleigh,
+dome,
+doormat, welcome mat,
+drilling platform, offshore rig,
+drum, membranophone, tympan,
+drumstick,
+dumbbell,
+Dutch oven,
+electric fan, blower,
+electric guitar,
+electric locomotive,
+entertainment center,
+envelope,
+espresso maker,
+face powder,
+feather boa, boa,
+file, file cabinet, filing cabinet,
+fireboat,
+fire engine, fire truck,
+fire screen, fireguard,
+flagpole, flagstaff,
+flute, transverse flute,
+folding chair,
+football helmet,
+forklift,
+fountain,
+fountain pen,
+four-poster,
+freight car,
+French horn, horn,
+frying pan, frypan, skillet,
+fur coat,
+garbage truck, dustcart,
+gasmask, respirator, gas helmet,
+gas pump, gasoline pump, petrol pump, island dispenser,
+goblet,
+go-kart,
+golf ball,
+golfcart, golf cart,
+gondola,
+gong, tam-tam,
+gown,
+grand piano, grand,
+greenhouse, nursery, glasshouse,
+grille, radiator grille,
+grocery store, grocery, food market, market,
+guillotine,
+hair slide,
+hair spray,
+half track,
+hammer,
+hamper,
+hand blower, blow dryer, blow drier, hair dryer, hair drier,
+hand-held computer, hand-held microcomputer,
+handkerchief, hankie, hanky, hankey,
+hard disc, hard disk, fixed disk,
+harmonica, mouth organ, harp, mouth harp,
+harp,
+harvester, reaper,
+hatchet,
+holster,
+home theater, home theatre,
+honeycomb,
+hook, claw,
+hoopskirt, crinoline,
+horizontal bar, high bar,
+horse cart, horse-cart,
+hourglass,
+iPod,
+iron, smoothing iron,
+"jack-o-lantern",
+jean, blue jean, denim,
+jeep, landrover,
+jersey, T-shirt, tee shirt,
+jigsaw puzzle,
+jinrikisha, ricksha, rickshaw,
+joystick,
+kimono,
+knee pad,
+knot,
+lab coat, laboratory coat,
+ladle,
+lampshade, lamp shade,
+laptop, laptop computer,
+lawn mower, mower,
+lens cap, lens cover,
+letter opener, paper knife, paperknife,
+library,
+lifeboat,
+lighter, light, igniter, ignitor,
+limousine, limo,
+liner, ocean liner,
+lipstick, lip rouge,
+Loafer,
+lotion,
+loudspeaker, speaker, speaker unit, loudspeaker system, speaker system,
+"loupe, jewelers loupe",
+lumbermill, sawmill,
+magnetic compass,
+mailbag, postbag,
+mailbox, letter box,
+maillot,
+maillot, tank suit,
+manhole cover,
+maraca,
+marimba, xylophone,
+mask,
+matchstick,
+maypole,
+maze, labyrinth,
+measuring cup,
+medicine chest, medicine cabinet,
+megalith, megalithic structure,
+microphone, mike,
+microwave, microwave oven,
+military uniform,
+milk can,
+minibus,
+miniskirt, mini,
+minivan,
+missile,
+mitten,
+mixing bowl,
+mobile home, manufactured home,
+Model T,
+modem,
+monastery,
+monitor,
+moped,
+mortar,
+mortarboard,
+mosque,
+mosquito net,
+motor scooter, scooter,
+mountain bike, all-terrain bike, off-roader,
+mountain tent,
+mouse, computer mouse,
+mousetrap,
+moving van,
+muzzle,
+nail,
+neck brace,
+necklace,
+nipple,
+notebook, notebook computer,
+obelisk,
+oboe, hautboy, hautbois,
+ocarina, sweet potato,
+odometer, hodometer, mileometer, milometer,
+oil filter,
+organ, pipe organ,
+oscilloscope, scope, cathode-ray oscilloscope, CRO,
+overskirt,
+oxcart,
+oxygen mask,
+packet,
+paddle, boat paddle,
+paddlewheel, paddle wheel,
+padlock,
+paintbrush,
+"pajama, pyjama, pjs, jammies",
+palace,
+panpipe, pandean pipe, syrinx,
+paper towel,
+parachute, chute,
+parallel bars, bars,
+park bench,
+parking meter,
+passenger car, coach, carriage,
+patio, terrace,
+pay-phone, pay-station,
+pedestal, plinth, footstall,
+pencil box, pencil case,
+pencil sharpener,
+perfume, essence,
+Petri dish,
+photocopier,
+pick, plectrum, plectron,
+pickelhaube,
+picket fence, paling,
+pickup, pickup truck,
+pier,
+piggy bank, penny bank,
+pill bottle,
+pillow,
+ping-pong ball,
+pinwheel,
+pirate, pirate ship,
+pitcher, ewer,
+"plane, carpenters plane, woodworking plane",
+planetarium,
+plastic bag,
+plate rack,
+plow, plough,
+"plunger, plumbers helper",
+Polaroid camera, Polaroid Land camera,
+pole,
+police van, police wagon, paddy wagon, patrol wagon, wagon, black Maria,
+poncho,
+pool table, billiard table, snooker table,
+pop bottle, soda bottle,
+pot, flowerpot,
+"potters wheel",
+power drill,
+prayer rug, prayer mat,
+printer,
+prison, prison house,
+projectile, missile,
+projector,
+puck, hockey puck,
+punching bag, punch bag, punching ball, punchball,
+purse,
+quill, quill pen,
+quilt, comforter, comfort, puff,
+racer, race car, racing car,
+racket, racquet,
+radiator,
+radio, wireless,
+radio telescope, radio reflector,
+rain barrel,
+recreational vehicle, RV, R.V.,
+reel,
+reflex camera,
+refrigerator, icebox,
+remote control, remote,
+restaurant, eating house, eating place, eatery,
+revolver, six-gun, six-shooter,
+rifle,
+rocking chair, rocker,
+rotisserie,
+rubber eraser, rubber, pencil eraser,
+rugby ball,
+rule, ruler,
+running shoe,
+safe,
+safety pin,
+saltshaker, salt shaker,
+sandal,
+sarong,
+sax, saxophone,
+scabbard,
+scale, weighing machine,
+school bus,
+schooner,
+scoreboard,
+screen, CRT screen,
+screw,
+screwdriver,
+seat belt, seatbelt,
+sewing machine,
+shield, buckler,
+shoe shop, shoe-shop, shoe store,
+shoji,
+shopping basket,
+shopping cart,
+shovel,
+shower cap,
+shower curtain,
+ski,
+ski mask,
+sleeping bag,
+slide rule, slipstick,
+sliding door,
+slot, one-armed bandit,
+snorkel,
+snowmobile,
+snowplow, snowplough,
+soap dispenser,
+soccer ball,
+sock,
+solar dish, solar collector, solar furnace,
+sombrero,
+soup bowl,
+space bar,
+space heater,
+space shuttle,
+spatula,
+speedboat,
+"spider web, spiders web",
+spindle,
+sports car, sport car,
+spotlight, spot,
+stage,
+steam locomotive,
+steel arch bridge,
+steel drum,
+stethoscope,
+stole,
+stone wall,
+stopwatch, stop watch,
+stove,
+strainer,
+streetcar, tram, tramcar, trolley, trolley car,
+stretcher,
+studio couch, day bed,
+stupa, tope,
+submarine, pigboat, sub, U-boat,
+suit, suit of clothes,
+sundial,
+sunglass,
+sunglasses, dark glasses, shades,
+sunscreen, sunblock, sun blocker,
+suspension bridge,
+swab, swob, mop,
+sweatshirt,
+swimming trunks, bathing trunks,
+swing,
+switch, electric switch, electrical switch,
+syringe,
+table lamp,
+tank, army tank, armored combat vehicle, armoured combat vehicle,
+tape player,
+teapot,
+teddy, teddy bear,
+television, television system,
+tennis ball,
+thatch, thatched roof,
+theater curtain, theatre curtain,
+thimble,
+thresher, thrasher, threshing machine,
+throne,
+tile roof,
+toaster,
+tobacco shop, tobacconist shop, tobacconist,
+toilet seat,
+torch,
+totem pole,
+tow truck, tow car, wrecker,
+toyshop,
+tractor,
+trailer truck, tractor trailer, trucking rig, rig, articulated lorry, semi,
+tray,
+trench coat,
+tricycle, trike, velocipede,
+trimaran,
+tripod,
+triumphal arch,
+trolleybus, trolley coach, trackless trolley,
+trombone,
+tub, vat,
+turnstile,
+typewriter keyboard,
+umbrella,
+unicycle, monocycle,
+upright, upright piano,
+vacuum, vacuum cleaner,
+vase,
+vault,
+velvet,
+vending machine,
+vestment,
+viaduct,
+violin, fiddle,
+volleyball,
+waffle iron,
+wall clock,
+wallet, billfold, notecase, pocketbook,
+wardrobe, closet, press,
+warplane, military plane,
+washbasin, handbasin, washbowl, lavabo, wash-hand basin,
+washer, automatic washer, washing machine,
+water bottle,
+water jug,
+water tower,
+whiskey jug,
+whistle,
+wig,
+window screen,
+window shade,
+Windsor tie,
+wine bottle,
+wing,
+wok,
+wooden spoon,
+wool, woolen, woollen,
+worm fence, snake fence, snake-rail fence, Virginia fence,
+wreck,
+yawl,
+yurt,
+web site, website, internet site, site,
+comic book,
+crossword puzzle, crossword,
+street sign,
+traffic light, traffic signal, stoplight,
+book jacket, dust cover, dust jacket, dust wrapper,
+menu,
+plate,
+guacamole,
+consomme,
+hot pot, hotpot,
+trifle,
+ice cream, icecream,
+ice lolly, lolly, lollipop, popsicle,
+French loaf,
+bagel, beigel,
+pretzel,
+cheeseburger,
+hotdog, hot dog, red hot,
+mashed potato,
+head cabbage,
+broccoli,
+cauliflower,
+zucchini, courgette,
+spaghetti squash,
+acorn squash,
+butternut squash,
+cucumber, cuke,
+artichoke, globe artichoke,
+bell pepper,
+cardoon,
+mushroom,
+Granny Smith,
+strawberry,
+orange,
+lemon,
+fig,
+pineapple, ananas,
+banana,
+jackfruit, jak, jack,
+custard apple,
+pomegranate,
+hay,
+carbonara,
+chocolate sauce, chocolate syrup,
+dough,
+meat loaf, meatloaf,
+pizza, pizza pie,
+potpie,
+burrito,
+red wine,
+espresso,
+cup,
+eggnog,
+alp,
+bubble,
+cliff, drop, drop-off,
+coral reef,
+geyser,
+lakeside, lakeshore,
+promontory, headland, head, foreland,
+sandbar, sand bar,
+seashore, coast, seacoast, sea-coast,
+valley, vale,
+volcano,
+ballplayer, baseball player,
+groom, bridegroom,
+scuba diver,
+rapeseed,
+daisy,
+"yellow ladys slipper, yellow lady-slipper, Cypripedium calceolus, Cypripedium parviflorum",
+corn,
+acorn,
+hip, rose hip, rosehip,
+buckeye, horse chestnut, conker,
+coral fungus,
+agaric,
+gyromitra,
+stinkhorn, carrion fungus,
+earthstar,
+hen-of-the-woods, hen of the woods, Polyporus frondosus, Grifola frondosa,
+bolete,
+ear, spike, capitulum,
+toilet tissue, toilet paper, bathroom tissue
diff --git a/python/examples/imagenet/resnet50_web_service.py b/python/examples/imagenet/resnet50_web_service.py
new file mode 100644
index 0000000000000000000000000000000000000000..ba40b41bbd9b773910ba0265b3604edd650570ff
--- /dev/null
+++ b/python/examples/imagenet/resnet50_web_service.py
@@ -0,0 +1,72 @@
+# Copyright (c) 2020 PaddlePaddle Authors. 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.
+import sys
+from paddle_serving_client import Client
+from paddle_serving_app.reader import Sequential, URL2Image, Resize, CenterCrop, RGB2BGR, Transpose, Div, Normalize
+
+if len(sys.argv) != 4:
+    print("python resnet50_web_service.py model device port")
+    sys.exit(-1)
+
+device = sys.argv[2]
+
+if device == "cpu":
+    from paddle_serving_server.web_service import WebService
+else:
+    from paddle_serving_server_gpu.web_service import WebService
+
+
+class ImageService(WebService):
+    def init_imagenet_setting(self):
+        self.seq = Sequential([
+            URL2Image(), Resize(256), CenterCrop(224), RGB2BGR(), Transpose(
+                (2, 0, 1)), Div(255), Normalize([0.485, 0.456, 0.406],
+                                                [0.229, 0.224, 0.225], True)
+        ])
+        self.label_dict = {}
+        label_idx = 0
+        with open("imagenet.label") as fin:
+            for line in fin:
+                self.label_dict[label_idx] = line.strip()
+                label_idx += 1
+
+    def preprocess(self, feed=[], fetch=[]):
+        feed_batch = []
+        for ins in feed:
+            if "image" not in ins:
+                raise ("feed data error!")
+            img = self.seq(ins["image"])
+            feed_batch.append({"image": img})
+        return feed_batch, fetch
+
+    def postprocess(self, feed=[], fetch=[], fetch_map={}):
+        score_list = fetch_map["score"]
+        result = {"label": [], "prob": []}
+        for score in score_list:
+            max_score = max(score)
+            result["label"].append(self.label_dict[score.index(max_score)]
+                                   .strip().replace(",", ""))
+            result["prob"].append(max_score)
+        return result
+
+
+image_service = ImageService(name="image")
+image_service.load_model_config(sys.argv[1])
+image_service.init_imagenet_setting()
+if device == "gpu":
+    image_service.set_gpus("0,1")
+image_service.prepare_server(
+    workdir="workdir", port=int(sys.argv[3]), device=device)
+image_service.run_server()
+image_service.run_flask()