diff --git a/llmc/__main__.py b/llmc/__main__.py
index 98db4ca26..ec60c1492 100755
--- a/llmc/__main__.py
+++ b/llmc/__main__.py
@@ -20,7 +20,8 @@
 from llmc.models import *
 from llmc.utils import (check_config, deploy_all_modality, get_modality,
                         mkdirs, print_important_package_version, seed_all,
-                        update_autoawq_quant_config, update_vllm_quant_config)
+                        update_autoawq_quant_config,
+                        update_lightx2v_quant_config, update_vllm_quant_config)
 from llmc.utils.registry_factory import ALGO_REGISTRY, MODEL_REGISTRY
 
 
@@ -158,6 +159,7 @@ def main(config):
             elif config.save.get('save_lightx2v', False):
                 deploy_all_modality(blockwise_opts, 'lightx2v_quant')
                 blockwise_opt.save_model(save_quant_path)
+                update_lightx2v_quant_config(save_quant_path)
 
         if 'opencompass' in config:
             assert config.save.get('save_trans', False)
diff --git a/llmc/utils/__init__.py b/llmc/utils/__init__.py
old mode 100644
new mode 100755
index cdd10a9e7..7f8a38411
--- a/llmc/utils/__init__.py
+++ b/llmc/utils/__init__.py
@@ -1,4 +1,5 @@
 from .export_autoawq import update_autoawq_quant_config
+from .export_lightx2v import update_lightx2v_quant_config
 from .export_vllm import update_vllm_quant_config
 from .utils import (check_config, copy_files, deploy_all_modality,
                     get_modality, mkdirs, print_important_package_version,
diff --git a/llmc/utils/export_lightx2v.py b/llmc/utils/export_lightx2v.py
new file mode 100755
index 000000000..0c753ad89
--- /dev/null
+++ b/llmc/utils/export_lightx2v.py
@@ -0,0 +1,11 @@
+import json
+
+
+def update_lightx2v_quant_config(save_quant_path):
+
+    config_file = save_quant_path + '/config.json'
+    with open(config_file, 'r') as file:
+        config_lightx2v = json.load(file)
+    config_lightx2v['quant_method'] = 'advanced_ptq'
+    with open(config_file, 'w') as file:
+        json.dump(config_lightx2v, file, indent=4)