Bus route: Metro Line 4 Daxing Line → Metro Line 7 → Metro Line 9 → Fangshan Line, with a total length of about 36.6 kilometers.

1. Take Daxing Line of Metro Line 4 from Beijing South Railway Station, pass 2 stops and arrive at caishikou station.

2. Walk about 50 meters and transfer to Metro Line 7.

3. Take Metro Line 7, pass 4 stops and arrive at Beijing West Railway Station.

4. Take Metro Line 9, pass 8 stops and arrive at Guogongzhuang Station.

5. Take Fangshan Line, after 7 stops, arrive at Liangxiang University Town Station.