diff --git a/applications/ColossalChat/coati/distributed/README.md b/applications/ColossalChat/coati/distributed/README.md
index ca6a49fb0..74e30bc46 100644
--- a/applications/ColossalChat/coati/distributed/README.md
+++ b/applications/ColossalChat/coati/distributed/README.md
@@ -129,6 +129,7 @@ pip install ray
 ```
 
 Install Other Dependencies
+
 ```bash
 export ATB_LLM_HCCL_ENABLE=1
 export ATB_LLM_COMM_BACKEND="hccl"
@@ -284,6 +285,8 @@ In addition to the two default training settings we provided--- original `GRPO`
     train_pipeline_parallelism_size /
     train_tensor_parallelism_size)
   ```
+
+
 ---
 
 ## 🧪 Example: single machine 8-GPU Zero2 Strategy
@@ -334,6 +337,54 @@ plugin_config={
   },  # for pp, tp
 ```
 
+```bash
+# Hint1: replace /models/Qwen/Qwen2.5-7B to your model path
+#        replace /datasets/train-alignment.jsonl to your dataset path
+python rl_example.py
+  -m /path/to/Qwen2.5-Math-7B/ \
+  -d /path/to/train_data.jsonl \
+  --master_address '10.0.0.3'
+  -t 16 \
+  -i 16 \
+  -p GRPO-Train-Align-Debug \
+  -g 2 \
+  -ibs 1 \
+  -tbs 2 \
+  -tMbs 1 \
+  -tmbs 2 \
+  -imbs 1 \
+  -s "Please reason step by step, and put your final answer within \\boxed{}." \
+  -tMbs 8 \
+  -p GRPO-Train-Align-Debug \
+```
+
+## 🧪 Example: multi-machine TP+PP Strategy
+
+### Create ray cluster on multi-machine
+For example, now we have 4 nodes and their IPs are 10.0.0.3, 10.0.0.4, 10.0.0.5, 10.0.0.6.
+We use 10.0.0.3 as master node. First we start a ray cluster on 10.0.0.3:
+```bash
+ray start --head --node-ip-address=10.0.0.3
+```
+
+Then, for each slave node (10.0.0.4/10.0.0.5/10.0.0.6), we add to the ray cluser by following code:
+```bash
+ray start --address='10.0.0.3:6379'
+```
+
+Modify plugin_config in ./applications/ColossalChat/rl_example.py
+```python
+plugin_config={
+  "tp_size": 4,
+  "pp_size": 2,
+  "microbatch_size": max(
+    1, args.train_microbatch_size // 2
+  ),  # microbatch size should be set to train_microbatch_size // pp_size
+  "zero_stage": 1,
+  "max_norm": 1.0,
+  },  # for pp, tp
+```
+
 ```bash
 # Hint1: replace /models/Qwen/Qwen2.5-7B to your model path
 #        replace /datasets/train-alignment.jsonl to your dataset path