diff --git a/demos/streaming_asr_server/conf/ws_ds2_application.yaml b/demos/streaming_asr_server/conf/ws_ds2_application.yaml
index e36a829c..ac20b2a2 100644
--- a/demos/streaming_asr_server/conf/ws_ds2_application.yaml
+++ b/demos/streaming_asr_server/conf/ws_ds2_application.yaml
@@ -18,12 +18,13 @@ engine_list: ['asr_online-onnx']
 #                                ENGINE CONFIG                                  #
 #################################################################################
 
+
 ################################### ASR #########################################
-################### speech task: asr; engine_type: online-inference #######################
-asr_online-inference:
+################### speech task: asr; engine_type: online-onnx #######################
+asr_online-onnx:
     model_type: 'deepspeech2online_wenetspeech'
-    am_model:    # the pdmodel file of am static model [optional]
-    am_params:   # the pdiparams file of am static model [optional]
+    am_model:  # the pdmodel file of onnx am static model [optional]
+    am_params:  # the pdiparams file of am static model [optional]
     lang: 'zh'
     sample_rate: 16000
     cfg_path: 
@@ -32,11 +33,14 @@ asr_online-inference:
     force_yes: True
     device: 'cpu' # cpu or gpu:id
 
+    # https://onnxruntime.ai/docs/api/python/api_summary.html#inferencesession
     am_predictor_conf:
-        device:  # set 'gpu:id' or 'cpu'
-        switch_ir_optim: True
-        glog_info: False  # True -> print glog
-        summary: True  # False -> do not show predictor config
+        device: 'cpu' # set 'gpu:id' or 'cpu'
+        graph_optimization_level: 0 
+        intra_op_num_threads: 0 # Sets the number of threads used to parallelize the execution within nodes.
+        inter_op_num_threads: 0 # Sets the number of threads used to parallelize the execution of the graph (across nodes).
+        log_severity_level: 2   # Log severity level. Applies to session load, initialization, etc. 0:Verbose, 1:Info, 2:Warning. 3:Error, 4:Fatal. Default is 2.
+        log_verbosity_level: 0  # VLOG level if DEBUG build and session_log_severity_level is 0. Applies to session load, initialization, etc. Default is 0.
 
     chunk_buffer_conf:
         frame_duration_ms: 85
@@ -49,13 +53,12 @@ asr_online-inference:
         shift_ms: 10    # ms
 
 
-
 ################################### ASR #########################################
-################### speech task: asr; engine_type: online-onnx #######################
-asr_online-onnx:
+################### speech task: asr; engine_type: online-inference #######################
+asr_online-inference:
     model_type: 'deepspeech2online_wenetspeech'
-    am_model:  # the pdmodel file of onnx am static model [optional]
-    am_params:  # the pdiparams file of am static model [optional]
+    am_model:    # the pdmodel file of am static model [optional]
+    am_params:   # the pdiparams file of am static model [optional]
     lang: 'zh'
     sample_rate: 16000
     cfg_path: 
@@ -64,21 +67,18 @@ asr_online-onnx:
     force_yes: True
     device: 'cpu' # cpu or gpu:id
 
-    # https://onnxruntime.ai/docs/api/python/api_summary.html#inferencesession
     am_predictor_conf:
-        device: 'cpu' # set 'gpu:id' or 'cpu'
-        graph_optimization_level: 0 
-        intra_op_num_threads: 0 # Sets the number of threads used to parallelize the execution within nodes.
-        inter_op_num_threads: 0 # Sets the number of threads used to parallelize the execution of the graph (across nodes).
-        log_severity_level: 2   # Log severity level. Applies to session load, initialization, etc. 0:Verbose, 1:Info, 2:Warning. 3:Error, 4:Fatal. Default is 2.
-        log_verbosity_level: 0  # VLOG level if DEBUG build and session_log_severity_level is 0. Applies to session load, initialization, etc. Default is 0.
+        device:  # set 'gpu:id' or 'cpu'
+        switch_ir_optim: True
+        glog_info: False  # True -> print glog
+        summary: True  # False -> do not show predictor config
 
     chunk_buffer_conf:
-        frame_duration_ms: 80
+        frame_duration_ms: 85
         shift_ms: 40
         sample_rate: 16000
         sample_width: 2
         window_n: 7     # frame
         shift_n: 4      # frame
         window_ms: 25   # ms
-        shift_ms: 10    # ms
+        shift_ms: 10    # ms
\ No newline at end of file
diff --git a/paddlespeech/server/conf/ws_ds2_application.yaml b/paddlespeech/server/conf/ws_ds2_application.yaml
index 909c2f18..ac20b2a2 100644
--- a/paddlespeech/server/conf/ws_ds2_application.yaml
+++ b/paddlespeech/server/conf/ws_ds2_application.yaml
@@ -18,12 +18,13 @@ engine_list: ['asr_online-onnx']
 #                                ENGINE CONFIG                                  #
 #################################################################################
 
+
 ################################### ASR #########################################
-################### speech task: asr; engine_type: online-inference #######################
-asr_online-inference:
+################### speech task: asr; engine_type: online-onnx #######################
+asr_online-onnx:
     model_type: 'deepspeech2online_wenetspeech'
-    am_model:    # the pdmodel file of am static model [optional]
-    am_params:   # the pdiparams file of am static model [optional]
+    am_model:  # the pdmodel file of onnx am static model [optional]
+    am_params:  # the pdiparams file of am static model [optional]
     lang: 'zh'
     sample_rate: 16000
     cfg_path: 
@@ -32,14 +33,17 @@ asr_online-inference:
     force_yes: True
     device: 'cpu' # cpu or gpu:id
 
+    # https://onnxruntime.ai/docs/api/python/api_summary.html#inferencesession
     am_predictor_conf:
-        device:  # set 'gpu:id' or 'cpu'
-        switch_ir_optim: True
-        glog_info: False  # True -> print glog
-        summary: True  # False -> do not show predictor config
+        device: 'cpu' # set 'gpu:id' or 'cpu'
+        graph_optimization_level: 0 
+        intra_op_num_threads: 0 # Sets the number of threads used to parallelize the execution within nodes.
+        inter_op_num_threads: 0 # Sets the number of threads used to parallelize the execution of the graph (across nodes).
+        log_severity_level: 2   # Log severity level. Applies to session load, initialization, etc. 0:Verbose, 1:Info, 2:Warning. 3:Error, 4:Fatal. Default is 2.
+        log_verbosity_level: 0  # VLOG level if DEBUG build and session_log_severity_level is 0. Applies to session load, initialization, etc. Default is 0.
 
     chunk_buffer_conf:
-        frame_duration_ms: 80
+        frame_duration_ms: 85
         shift_ms: 40
         sample_rate: 16000
         sample_width: 2
@@ -49,13 +53,12 @@ asr_online-inference:
         shift_ms: 10    # ms
 
 
-
 ################################### ASR #########################################
-################### speech task: asr; engine_type: online-onnx #######################
-asr_online-onnx:
+################### speech task: asr; engine_type: online-inference #######################
+asr_online-inference:
     model_type: 'deepspeech2online_wenetspeech'
-    am_model:  # the pdmodel file of onnx am static model [optional]
-    am_params:  # the pdiparams file of am static model [optional]
+    am_model:    # the pdmodel file of am static model [optional]
+    am_params:   # the pdiparams file of am static model [optional]
     lang: 'zh'
     sample_rate: 16000
     cfg_path: 
@@ -64,14 +67,11 @@ asr_online-onnx:
     force_yes: True
     device: 'cpu' # cpu or gpu:id
 
-    # https://onnxruntime.ai/docs/api/python/api_summary.html#inferencesession
     am_predictor_conf:
-        device: 'cpu' # set 'gpu:id' or 'cpu'
-        graph_optimization_level: 0 
-        intra_op_num_threads: 0 # Sets the number of threads used to parallelize the execution within nodes.
-        inter_op_num_threads: 0 # Sets the number of threads used to parallelize the execution of the graph (across nodes).
-        log_severity_level: 2   # Log severity level. Applies to session load, initialization, etc. 0:Verbose, 1:Info, 2:Warning. 3:Error, 4:Fatal. Default is 2.
-        log_verbosity_level: 0  # VLOG level if DEBUG build and session_log_severity_level is 0. Applies to session load, initialization, etc. Default is 0.
+        device:  # set 'gpu:id' or 'cpu'
+        switch_ir_optim: True
+        glog_info: False  # True -> print glog
+        summary: True  # False -> do not show predictor config
 
     chunk_buffer_conf:
         frame_duration_ms: 85
@@ -81,4 +81,4 @@ asr_online-onnx:
         window_n: 7     # frame
         shift_n: 4      # frame
         window_ms: 25   # ms
-        shift_ms: 10    # ms
+        shift_ms: 10    # ms
\ No newline at end of file
diff --git a/speechx/examples/ds2_ol/onnx/README.md b/speechx/examples/ds2_ol/onnx/README.md
index eaea8b6e..8ad625a0 100644
--- a/speechx/examples/ds2_ol/onnx/README.md
+++ b/speechx/examples/ds2_ol/onnx/README.md
@@ -1,9 +1,11 @@
-# DeepSpeech2 ONNX model
+# DeepSpeech2 to ONNX model
 
 1. convert deepspeech2 model to ONNX, using Paddle2ONNX.
 2. check paddleinference and onnxruntime output equal.
 3. optimize onnx model
 4. check paddleinference and optimized onnxruntime output equal.
+5. quantize onnx model
+4. check paddleinference and optimized onnxruntime output equal.
 
 Please make sure [Paddle2ONNX](https://github.com/PaddlePaddle/Paddle2ONNX) and [onnx-simplifier](https://github.com/zh794390558/onnx-simplifier/tree/dyn_time_shape) version is correct.
 
@@ -26,12 +28,27 @@ onnxruntime              1.11.0
 ## Using
 
 ```
-bash run.sh
+bash run.sh --stage 0 --stop_stage 5
 ```
 
 For more details please see `run.sh`.
 
 ## Outputs
-The optimized onnx model is `exp/model.opt.onnx`.
+The optimized onnx model is `exp/model.opt.onnx`, quanted model is `$exp/model.optset11.quant.onnx`.
 
 To show the graph, please using `local/netron.sh`.
+
+
+## [Results](https://github.com/PaddlePaddle/PaddleSpeech/wiki/ASR-Benchmark#streaming-asr)
+
+机器硬件：`CPU：Intel(R) Xeon(R) Gold 6271C CPU @ 2.60GHz`    
+测试脚本：`Streaming Server`      
+
+Acoustic Model | Model Size | enigne | dedoding_method | ctc_weight | decoding_chunk_size | num_decoding_left_chunk | RTF |
+|:-------------:| :-----: | :-----: | :------------:| :-----: | :-----: | :-----: |:-----:|
+| deepspeech2online_wenetspeech | 659MB | infernece | ctc_prefix_beam_search | - | 1 | - | 1.9108175171428279(utts=80) |
+| deepspeech2online_wenetspeech | 659MB | onnx | ctc_prefix_beam_search | - | 1 | - | 0.5617182449999291 (utts=80) |
+| deepspeech2online_wenetspeech | 166MB | onnx quant | ctc_prefix_beam_search | - | 1 | - | 0.44507715475808385 (utts=80) |
+
+> quant 和机器有关，不是所有机器都支持。ONNX quant测试机器指令集支持:
+> Flags:   fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl xtopology eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single ssbd ibrs ibpb fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx avx512f avx512dq rdseed adx smap clflushopt clwb avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 arat umip pku ospke avx512_vnni spec_ctrl
\ No newline at end of file
diff --git a/speechx/examples/ds2_ol/onnx/local/onnx_convert_opset.py b/speechx/examples/ds2_ol/onnx/local/onnx_convert_opset.py
new file mode 100755
index 00000000..53efc3db
--- /dev/null
+++ b/speechx/examples/ds2_ol/onnx/local/onnx_convert_opset.py
@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+import argparse
+import onnx
+from onnx import version_converter, helper
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(prog=__doc__)
+    parser.add_argument("--model-file", type=str, required=True, help='path/to/the/model.onnx.')
+    parser.add_argument("--save-model", type=str, required=True, help='path/to/saved/model.onnx.')
+    # Models must be opset10 or higher to be quantized.
+    parser.add_argument("--target-opset", type=int, default=11, help='path/to/the/model.onnx.')
+
+    args = parser.parse_args()
+
+    print(f"to opset: {args.target_opset}")
+
+    # Preprocessing: load the model to be converted.
+    model_path = args.model_file
+    original_model = onnx.load(model_path)
+
+    # print('The model before conversion:\n{}'.format(original_model))
+
+    # A full list of supported adapters can be found here:
+    # https://github.com/onnx/onnx/blob/main/onnx/version_converter.py#L21
+    # Apply the version conversion on the original model
+    converted_model = version_converter.convert_version(original_model, args.target_opset)
+
+    # print('The model after conversion:\n{}'.format(converted_model))
+    onnx.save(converted_model, args.save_model)
diff --git a/speechx/examples/ds2_ol/onnx/local/ort_dyanmic_quant.py b/speechx/examples/ds2_ol/onnx/local/ort_dyanmic_quant.py
new file mode 100755
index 00000000..331f0821
--- /dev/null
+++ b/speechx/examples/ds2_ol/onnx/local/ort_dyanmic_quant.py
@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+import argparse
+import onnx
+from onnxruntime.quantization import quantize_dynamic, QuantType
+
+def quantize_onnx_model(onnx_model_path, quantized_model_path, nodes_to_exclude=[]):
+    print("Starting quantization...")
+    from onnxruntime.quantization import QuantType, quantize_dynamic
+
+    quantize_dynamic(onnx_model_path, quantized_model_path, weight_type=QuantType.QInt8, nodes_to_exclude=nodes_to_exclude)
+
+    print(f"Quantized model saved to: {quantized_model_path}")
+
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--model-in",
+        type=str,
+        required=True,
+        help="ONNX model",
+    )
+    parser.add_argument(
+        "--model-out",
+        type=str,
+        required=True,
+        default='model.quant.onnx',
+        help="ONNX model",
+    )
+    parser.add_argument(
+        "--nodes-to-exclude",
+        type=str,
+        required=True,
+        help="nodes to exclude. e.g. conv,linear.",
+    )
+
+    args = parser.parse_args()
+    
+    nodes_to_exclude = args.nodes_to_exclude.split(',')
+    quantize_onnx_model(args.model_in, args.model_out, nodes_to_exclude)
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file
diff --git a/speechx/examples/ds2_ol/onnx/local/tonnx.sh b/speechx/examples/ds2_ol/onnx/local/tonnx.sh
index ffedf001..10487230 100755
--- a/speechx/examples/ds2_ol/onnx/local/tonnx.sh
+++ b/speechx/examples/ds2_ol/onnx/local/tonnx.sh
@@ -15,11 +15,12 @@ pip install paddle2onnx
 pip install onnx
 
 # https://github.com/PaddlePaddle/Paddle2ONNX#%E5%91%BD%E4%BB%A4%E8%A1%8C%E8%BD%AC%E6%8D%A2
+ # opset10 support quantize
 paddle2onnx --model_dir $dir \
             --model_filename $model \
             --params_filename $param \
             --save_file $output \
             --enable_dev_version True \
-            --opset_version 9 \
+            --opset_version 11 \
             --enable_onnx_checker True
             
\ No newline at end of file
diff --git a/speechx/examples/ds2_ol/onnx/run.sh b/speechx/examples/ds2_ol/onnx/run.sh
index 583abda4..b4df9d94 100755
--- a/speechx/examples/ds2_ol/onnx/run.sh
+++ b/speechx/examples/ds2_ol/onnx/run.sh
@@ -89,6 +89,18 @@ if [ ${stage} -le 4 ] && [ ${stop_stage} -ge 4 ] ;then
 fi
 
 
+if [ ${stage} -le 5 ] && [ ${stop_stage} -ge 5 ];then
+    # convert opset_num to 11
+    ./local/onnx_convert_opset.py --target-opset 11  --model-file $exp/model.ort.opt.onnx --save-model $exp/model.optset11.onnx 
+
+    # quant model
+    nodes_to_exclude='p2o.Conv.0,p2o.Conv.2'
+    ./local/ort_dyanmic_quant.py --model-in $exp/model.optset11.onnx --model-out $exp/model.optset11.quant.onnx --nodes-to-exclude "${nodes_to_exclude}"
+
+    ./local/infer_check.py --input_file $input_file --model_type $model_type  --model_dir $dir --model_prefix $model_prefix --onnx_model $exp/model.optset11.quant.onnx
+fi
+
+
 # aishell rnn hidden is 1024
 # wenetspeech rnn hiddn is 2048
 if [ $model_type == 'aishell' ];then