diff --git a/README.md b/README.md
index 0103298..5742ab6 100644
--- a/README.md
+++ b/README.md
@@ -168,6 +168,9 @@ From v1.5, v1.x goes into maintenance phase.
 Enjoy!
 
 # Change Log
+## v1.5.3
+* When downloading a model by url, check if target model version is already existed in user selected sub-folder.
+
 ## v1.5.2
 * Support scanning only selected model types. 
 
diff --git a/scripts/civitai_helper.py b/scripts/civitai_helper.py
index 3ba6a76..670fbcf 100644
--- a/scripts/civitai_helper.py
+++ b/scripts/civitai_helper.py
@@ -164,7 +164,7 @@ def on_ui_tabs():
         # Get Civitai Model Info by Model Page URL
         model_type_drop.change(get_model_names_by_input, inputs=[model_type_drop, empty_info_only_ckb], outputs=model_name_drop)
         empty_info_only_ckb.change(get_model_names_by_input, inputs=[model_type_drop, empty_info_only_ckb], outputs=model_name_drop)
-        
+
         get_civitai_model_info_by_id_btn.click(model_action_civitai.get_model_info_by_input, inputs=[model_type_drop, model_name_drop, model_url_or_id_txtbox, max_size_preview_ckb, skip_nsfw_preview_ckb], outputs=get_model_by_id_log_md)
 
         # Download Model
diff --git a/scripts/lib/js_action_civitai.py b/scripts/lib/js_action_civitai.py
index 00a9430..0c81853 100644
--- a/scripts/lib/js_action_civitai.py
+++ b/scripts/lib/js_action_civitai.py
@@ -221,6 +221,14 @@ def dl_model_new_version(msg, max_size_preview, skip_nsfw_preview):
     # get model folder from model path
     model_folder = os.path.dirname(model_path)
 
+    # no need to check when downloading new version, since checking new version is already checked
+    # check if this model is already existed
+    # r = civitai.search_local_model_info_by_version_id(model_folder, version_id)
+    # if r:
+    #     output = "This model version is already existed"
+    #     util.printD(output)
+    #     return output
+
     # download file
     new_model_path = downloader.dl(download_url, model_folder, None, None)
     if not new_model_path:
diff --git a/scripts/lib/model_action_civitai.py b/scripts/lib/model_action_civitai.py
index e240708..6238fe1 100644
--- a/scripts/lib/model_action_civitai.py
+++ b/scripts/lib/model_action_civitai.py
@@ -401,6 +401,13 @@ def dl_model_by_input(model_info:dict, model_type:str, subfolder_str:str, versio
         util.printD(output)
         return output
     
+    # check if this model is already existed
+    r = civitai.search_local_model_info_by_version_id(model_folder, version_id)
+    if r:
+        output = "This model version is already existed"
+        util.printD(output)
+        return output
+    
     # download
     filepath = downloader.dl(url, model_folder, None, None)
     if not filepath:
diff --git a/scripts/lib/util.py b/scripts/lib/util.py
index 1d90155..7c0fbce 100644
--- a/scripts/lib/util.py
+++ b/scripts/lib/util.py
@@ -4,7 +4,7 @@ import hashlib
 import requests
 import shutil
 
-version = "1.5.2"
+version = "1.5.3"
 
 # print for debugging
 def printD(msg):