diff --git a/models/recall/gnn/config.yaml b/models/recall/gnn/config.yaml
index ed290b2f81e530def392b2e851a81e1ff74cb8a2..dd9c1728ab9a810b82ec0076913557f1486ac2ce 100755
--- a/models/recall/gnn/config.yaml
+++ b/models/recall/gnn/config.yaml
@@ -42,7 +42,7 @@ hyper_parameters:
   gnn_propogation_steps: 1
 
 # select runner by name
-mode: train_runner
+mode: [train_runner, infer_runner]
 # config of each runner.
 # runner is a kind of paddle training class, which wraps the train/infer process.
 runner:
@@ -54,18 +54,20 @@ runner:
   device: cpu
   save_checkpoint_interval: 1 # save model interval of epochs
   save_inference_interval: 1 # save inference
-  save_checkpoint_path: "increment" # save checkpoint path
-  save_inference_path: "inference" # save inference path
+  save_checkpoint_path: "increment_gnn" # save checkpoint path
+  save_inference_path: "inference_gnn" # save inference path
   save_inference_feed_varnames: [] # feed vars of save inference
   save_inference_fetch_varnames: [] # fetch vars of save inference
   init_model_path: "" # load model path
   print_interval: 1
+  phases: [phase1]
 - name: infer_runner
   class: infer
   # device to run training or infer
   device: cpu
   print_interval: 1
-  init_model_path: "increment/0" # load model path
+  init_model_path: "increment_gnn" # load model path
+  phases: [phase2]
 
 # runner will run all the phase in each epoch
 phase:
@@ -73,7 +75,7 @@ phase:
   model: "{workspace}/model.py" # user-defined model
   dataset_name: dataset_train # select dataset by name
   thread_num: 1
-# - name: phase2
-#   model: "{workspace}/model.py" # user-defined model
-#   dataset_name: dataset_infer # select dataset by name
-#   thread_num: 1
+- name: phase2
+  model: "{workspace}/model.py" # user-defined model
+  dataset_name: dataset_infer # select dataset by name
+  thread_num: 1
diff --git a/models/recall/gnn/data/download.py b/models/recall/gnn/data/download.py
index 9bebdf1b37e2cd45369c14bb7446c206de8017a0..05fe898b4802257dc93f251cb33c6724aa790f6b 100644
--- a/models/recall/gnn/data/download.py
+++ b/models/recall/gnn/data/download.py
@@ -57,5 +57,10 @@ def _download_file(url, savepath, print_progress):
             progress("[%-50s] %.2f%%" % ('=' * 50, 100), end=True)
 
 
-_download_file("https://sr-gnn.bj.bcebos.com/train-item-views.csv",
-               "./train-item-views.csv", True)
+if sys.argv[1] == "diginetica":
+    _download_file("https://sr-gnn.bj.bcebos.com/train-item-views.csv",
+                   "./train-item-views.csv", True)
+elif sys.argv[1] == "yoochoose":
+    _download_file(
+        "https://paddlerec.bj.bcebos.com/gnn%2Fyoochoose-clicks.dat",
+        "./yoochoose-clicks.dat", True)
diff --git a/models/recall/gnn/data/preprocess.py b/models/recall/gnn/data/preprocess.py
index 3e7f710b221d708183c2f85d2743162c44b863da..56a9dbff507d68d19a03ac6bf0cd80af31f89f32 100644
--- a/models/recall/gnn/data/preprocess.py
+++ b/models/recall/gnn/data/preprocess.py
@@ -41,39 +41,29 @@ with open(dataset, "r") as f:
     curdate = None
     for data in reader:
         sessid = data['session_id']
-        if curdate and not curid == sessid:
-            date = ''
-            if opt.dataset == 'yoochoose':
-                date = time.mktime(
-                    time.strptime(curdate[:19], '%Y-%m-%dT%H:%M:%S'))
-            else:
-                date = time.mktime(time.strptime(curdate, '%Y-%m-%d'))
-            sess_date[curid] = date
-        curid = sessid
+        date = ''
         if opt.dataset == 'yoochoose':
             item = data['item_id']
+            date = time.mktime(
+                time.strptime(data['timestamp'][:19], '%Y-%m-%dT%H:%M:%S'))
         else:
             item = data['item_id'], int(data['timeframe'])
-        curdate = ''
-        if opt.dataset == 'yoochoose':
-            curdate = data['timestamp']
-        else:
-            curdate = data['eventdate']
+            date = time.mktime(time.strptime(data['eventdate'], '%Y-%m-%d'))
+
+        if sessid not in sess_date:
+            sess_date[sessid] = date
+        elif date > sess_date[sessid]:
+            sess_date[sessid] = date
 
         if sessid in sess_clicks:
             sess_clicks[sessid] += [item]
         else:
             sess_clicks[sessid] = [item]
         ctr += 1
-    date = ''
-    if opt.dataset == 'yoochoose':
-        date = time.mktime(time.strptime(curdate[:19], '%Y-%m-%dT%H:%M:%S'))
-    else:
-        date = time.mktime(time.strptime(curdate, '%Y-%m-%d'))
+    if opt.dataset != 'yoochoose':
         for i in list(sess_clicks):
             sorted_clicks = sorted(sess_clicks[i], key=operator.itemgetter(1))
             sess_clicks[i] = [c[0] for c in sorted_clicks]
-    sess_date[curid] = date
 print("-- Reading data @ %ss" % datetime.datetime.now())
 
 # Filter out length 1 sessions
@@ -160,7 +150,7 @@ def obtian_tra():
         train_dates += [date]
         train_seqs += [outseq]
     print(item_ctr)  # 43098, 37484
-    with open("./diginetica/config.txt", "w") as fout:
+    with open("./config.txt", "w") as fout:
         fout.write(str(item_ctr) + "\n")
     return train_ids, train_dates, train_seqs
 
diff --git a/models/recall/gnn/data_prepare.sh b/models/recall/gnn/data_prepare.sh
index 00a3dcebb01f33424ed9e9517967e5cb613bee81..a97e57ab350d91dedf0bde623d1fd2b97908bf96 100644
--- a/models/recall/gnn/data_prepare.sh
+++ b/models/recall/gnn/data_prepare.sh
@@ -15,21 +15,31 @@
 # limitations under the License.
 
 set -e
-echo "begin to download data"
 
-cd data && python download.py
-mkdir diginetica
-python preprocess.py --dataset diginetica
+dataset=$1
+src=$1
+
+if [[ $src == "yoochoose1_4" || $src == "yoochoose1_64" ]];then
+    src="yoochoose"
+elif [[ $src == "diginetica" ]];then
+    src="diginetica"
+else
+    echo "Usage: sh data_prepare.sh [diginetica|yoochoose1_4|yoochoose1_64]"
+    exit 1
+fi
+
+echo "begin to download data"
+cd data && python download.py $src
+mkdir $dataset
+python preprocess.py --dataset $src
 
 echo "begin to convert data (binary -> txt)"
-python convert_data.py --data_dir diginetica
+python convert_data.py --data_dir $dataset
 
-cat diginetica/train.txt | wc -l >> diginetica/config.txt
+cat ${dataset}/train.txt | wc -l >> config.txt
 
 rm -rf train && mkdir train
-mv diginetica/train.txt train
+mv ${dataset}/train.txt train
 
 rm -rf test && mkdir test
-mv diginetica/test.txt test
-
-mv diginetica/config.txt ./config.txt
+mv ${dataset}/test.txt test
diff --git a/models/recall/gnn/model.py b/models/recall/gnn/model.py
index 948324b484e3a25993bdc9aa4f858d5e0a0d10f9..0fea889e4ace4d0b2dff3058ac5b7f75a6c867ae 100755
--- a/models/recall/gnn/model.py
+++ b/models/recall/gnn/model.py
@@ -20,6 +20,7 @@ import paddle.fluid.layers as layers
 
 from paddlerec.core.utils import envs
 from paddlerec.core.model import ModelBase
+from paddlerec.core.metrics import RecallK
 
 
 class Model(ModelBase):
@@ -235,16 +236,16 @@ class Model(ModelBase):
         softmax = layers.softmax_with_cross_entropy(
             logits=logits, label=inputs[6])  # [batch_size, 1]
         self.loss = layers.reduce_mean(softmax)  # [1]
-        self.acc = layers.accuracy(input=logits, label=inputs[6], k=20)
-
+        acc = RecallK(input=logits, label=inputs[6], k=20)
         self._cost = self.loss
+
         if is_infer:
-            self._infer_results['acc'] = self.acc
-            self._infer_results['loss'] = self.loss
+            self._infer_results['P@20'] = acc
+            self._infer_results['LOSS'] = self.loss
             return
 
         self._metrics["LOSS"] = self.loss
-        self._metrics["train_acc"] = self.acc
+        self._metrics["Train_P@20"] = acc
 
     def optimizer(self):
         step_per_epoch = self.corpus_size // self.train_batch_size
diff --git a/models/recall/gnn/readme.md b/models/recall/gnn/readme.md
new file mode 100644
index 0000000000000000000000000000000000000000..3361f14b59a1dd118ebb147e0a5cb8d1b585ec77
--- /dev/null
+++ b/models/recall/gnn/readme.md
@@ -0,0 +1,76 @@
+# GNN
+
+## 快速开始
+PaddleRec中每个内置模型都配备了对应的样例数据，用户可基于该数据集快速对模型、环境进行验证，从而降低后续的调试成本。在内置数据集上进行训练的命令为：
+```
+python -m paddlerec.run -m paddlerec.models.recall.gnn 
+```
+
+## 数据处理
+- Step1: 原始数据数据集下载，本示例提供了两个开源数据集：DIGINETICA和Yoochoose，可选其中任意一个训练本模型。
+    ```
+    cd data && python download.py diginetica     # or yoochoose
+    ```
+    > [Yoochooses](https://2015.recsyschallenge.com/challenge.html)数据集来源于RecSys Challenge 2015，原始数据包含如下字段：
+    1. Session ID – the id of the session. In one session there are one or many clicks.
+    2. Timestamp – the time when the click occurred.
+    3. Item ID – the unique identifier of the item.
+    4. Category – the category of the item.
+
+    > [DIGINETICA](https://competitions.codalab.org/competitions/11161#learn_the_details-data2)数据集来源于CIKM Cup 2016 _Personalized E-Commerce Search Challenge_项目。原始数据包含如下字段：
+    1. sessionId - the id of the session. In one session there are one or many clicks.
+    2. userId - the id of the user, with anonymized user ids.
+    3. itemId - the unique identifier of the item.
+    4. timeframe - time since the first query in a session, in milliseconds.
+    5. eventdate - calendar date.
+
+- Step2: 数据预处理
+    ```
+    cd data && python preprocess.py --dataset diginetica   # or yoochoose
+    ```
+    1. 以session_id为key合并原始数据集，得到每个session的日期，及顺序点击列表。
+    2. 过滤掉长度为1的session；过滤掉点击次数小于5的items。
+    3. 训练集、测试集划分。原始数据集里最新日期七天内的作为测试集，更早之前的数据作为测试集。
+
+- Step3: 数据整理。 将训练文件统一放在data/train目录下，测试文件统一放在data/test目录下。
+    ```
+    cat data/diginetica/train.txt | wc -l >> data/config.txt    # or yoochoose1_4 or yoochoose1_64
+    rm -rf data/train/*
+    rm -rf data/test/*
+    mv data/diginetica/train.txt data/train
+    mv data/diginetica/test.txt data/test
+    ```
+数据处理完成后，data/train目录存放训练数据，data/test目录下存放测试数据，data/config.txt中存放数据统计信息，用以配置模型超参。
+
+方便起见， 我们提供了一键式数据处理脚本：
+```
+sh data_prepare.sh diginetica      # or yoochoose1_4 or yoochoose1_64
+```
+
+## 实验配置
+
+为在真实数据中复现论文中的效果，你还需要完成如下几步，PaddleRec所有配置均通过修改模型目录下的config.yaml文件完成：
+
+1. 真实数据配置。config.yaml中数据集相关配置见`dataset`字段，数据路径通过`data_path`进行配置。用户可以直接将workspace修改为当前项目目录的绝对路径完成设置。
+2. 超参配置。
+    - batch_size: 修改config.yaml中dataset_train数据集的batch_size为100。
+    - epochs: 修改config.yaml中runner的epochs为5。
+    - sparse_feature_number: 不同训练数据集(diginetica or yoochoose)配置不一致，diginetica数据集配置为43098，yoochoose数据集配置为37484。具体见数据处理后得到的data/config.txt文件中第一行。
+    - corpus_size: 不同训练数据集配置不一致，diginetica数据集配置为719470，yoochoose数据集配置为5917745。具体见数据处理后得到的data/config.txt文件中第二行。
+
+## 训练
+在完成[实验配置](##实验配置)后，执行如下命令完成训练：
+```
+python -m paddlerec.run -m ./config.yaml
+```
+
+## 测试
+开始测试前，你需要完成如下几步配置：
+1. 修改config.yaml中的mode，为infer_runner。
+2. 修改config.yaml中的phase，为phase_infer，需按提示注释掉phase_trainer。
+3. 修改config.yaml中dataset_infer数据集的batch_size为100。
+
+完成上面两步配置后，执行如下命令完成测试：
+```
+python -m paddlerec.run -m ./config.yaml
+```