Bus route: Metro Line 9 → Metro Line 4 → Metro 13 → Metro changping line → Chang 5 1, with a total length of about 49.0 kilometers.

1. Walk about140m from Beijing West Railway Station and arrive at Beijing West Railway Station.

2. Take Metro Line 9, pass 4 stops and arrive at National Library Station.

3. Take Daxing Line of Metro Line 4, pass 2 stops and arrive at Xizhimen Station.

4. Walk about 420 meters, and then transfer to the subway 13 line.

5. Take the subway 13 line, pass five stops and arrive at Xierqi Station.

6. Take the subway to changping line, pass 6 stops and arrive at Nanshao Station.

7. Walk about 400 meters and arrive at Nanshao Station.

8. Take Bus No.51,after 4 stops, arrive at Kangshan Square Station (or take Bus No.28).

9. Walk about 230 meters to the Changping District Library in Beijing.