There is no through train, so you need to transfer once.

Bus route: Rail Transit Line 3 → Road 853, with a total length of about 10.0 km.

1. Take rail transit line 3 from Chongqing North Railway Station, pass three stops and arrive at Jinyu Station.

2. Walk about 600 meters and arrive at Qibo Central Station.

3. Take bus No.853, and arrive at Zhengqian Yubei Branch Station after 6 stops (you can also take bus No.609, 6 19, 80 1 and 880).

4. Walk about 250 meters to the Yubei Campus of Southwest University of Political Science and Law.

I hope it will help you and I hope it will be adopted.