diff --git a/memos/commands.py b/memos/commands.py
index 200f177..9ff875a 100644
--- a/memos/commands.py
+++ b/memos/commands.py
@@ -1,9 +1,14 @@
-import typer
+import mimetypes
+import os
+import time
+from pathlib import Path
+from typing import List
+
 import httpx
+import typer
 from memos.server import run_server
 from tabulate import tabulate
-from typing import List
-from pathlib import Path
+from tqdm import tqdm
 
 app = typer.Typer()
 lib_app = typer.Typer()
@@ -63,5 +68,76 @@ def show(library_id: int):
 
 
 
+@lib_app.command("scan")
+def scan(library_id: int):
+
+    response = httpx.get(f"http://localhost:8080/libraries/{library_id}")
+    if response.status_code != 200:
+        print(f"Failed to retrieve library: {response.status_code} - {response.text}")
+        return
+
+    library = response.json()
+    total_files_added = 0
+
+    for folder in library["folders"]:
+        folder_path = Path(folder["path"])
+        if not folder_path.exists() or not folder_path.is_dir():
+            tqdm.write(f"Folder does not exist or is not a directory: {folder_path}")
+            continue
+
+        start_time = time.time()  # Start the timer
+        file_count = 0  # Initialize the file counter
+
+        for root, _, files in os.walk(folder_path):
+            with tqdm(
+                total=len(files), desc=f"Scanning {os.path.basename(root)}", leave=False
+            ) as pbar:
+                for file in files:
+                    current_time = time.time() - start_time  # Calculate elapsed time
+                    elapsed_time_str = f"{int(current_time // 60):02d}m:{int(current_time % 60):02d}s"  # Format as mm:ss for brevity
+                    pbar.set_postfix_str(
+                        f"Files: {file_count}, Time: {elapsed_time_str}", refresh=False
+                    )
+                    pbar.update(1)
+                    file_path = Path(root) / file
+                    relative_file_path = file_path.relative_to(folder_path)  # Get relative path
+                    file_stat = file_path.stat()
+                    file_type = mimetypes.guess_type(file_path)[0] or "application/octet-stream"
+                    new_entity = {
+                        "filename": file_path.name,
+                        "filepath": str(relative_file_path),  # Save relative path
+                        "size": file_stat.st_size,
+                        "file_created_at": file_stat.st_ctime,
+                        "file_last_modified_at": file_stat.st_mtime,
+                        "file_type": file_type,
+                        "folder_id": folder["id"],
+                    }
+
+                    # Check if the entity already exists
+                    get_response = httpx.get(
+                        f"http://localhost:8080/libraries/{library_id}/entities",
+                        params={"filepath": str(relative_file_path)},  # Use relative path
+                    )
+                    if get_response.status_code == 200:
+                        tqdm.write(f"File already exists in library: {file_path}")
+                        continue
+
+                    # Add the new entity
+                    post_response = httpx.post(
+                        f"http://localhost:8080/libraries/{library_id}/entities",
+                        json=new_entity,
+                    )
+                    if 200 <= post_response.status_code < 300:
+                        tqdm.write(f"Added file to library: {file_path}")
+                        total_files_added += 1
+                    else:
+                        tqdm.write(
+                            f"Failed to add file: {post_response.status_code} - {post_response.text}"
+                        )
+                    file_count += 1
+
+    print(f"Total files added: {total_files_added}")
+
+
 if __name__ == "__main__":
     app()