diff --git a/core/cli.py b/core/cli.py
index 0110b47..3c5f9ac 100644
--- a/core/cli.py
+++ b/core/cli.py
@@ -35,6 +35,7 @@ class Command(Enum):
     BACKUP_HYSTERIA = os.path.join(SCRIPT_DIR, 'hysteria2', 'backup.sh')
     INSTALL_TELEGRAMBOT = os.path.join(SCRIPT_DIR, 'telegrambot', 'runbot.sh')
     INSTALL_SINGBOX = os.path.join(SCRIPT_DIR, 'singbox', 'singbox_shell.sh')
+    INSTALL_NORMALSUB = os.path.join(SCRIPT_DIR, 'normalsub', 'normalsub.sh')
     INSTALL_TCP_BRUTAL = os.path.join(SCRIPT_DIR, 'tcp-brutal', 'install.sh')
     INSTALL_WARP = os.path.join(SCRIPT_DIR, 'warp', 'install.sh')
     UNINSTALL_WARP = os.path.join(SCRIPT_DIR, 'warp', 'uninstall.sh')
@@ -325,6 +326,19 @@ def singbox(action: str, domain: str, port: int):
     elif action == 'stop':
         run_cmd(['bash', Command.INSTALL_SINGBOX.value, 'stop'])
 
+@cli.command('normal-sub')
+@click.option('--action', '-a', required=True, help='Action to perform: start or stop', type=click.Choice(['start', 'stop'], case_sensitive=False))
+@click.option('--domain', '-d', required=False, help='Domain name for SSL', type=str)
+@click.option('--port', '-p', required=False, help='Port number for NormalSub service', type=int)
+def normalsub(action: str, domain: str, port: int):
+    if action == 'start':
+        if not domain or not port:
+            click.echo("Error: Both --domain and --port are required for the start action.")
+            return
+        run_cmd(['bash', Command.INSTALL_NORMALSUB.value, 'start', domain, str(port)])
+    elif action == 'stop':
+        run_cmd(['bash', Command.INSTALL_NORMALSUB.value, 'stop'])
+
 # endregion