1. Walk about 2.0 kilometers from Jingchang Huilongguan Building Materials City to Longze Station.
2. Take the subway 13 line, pass 6 stops and arrive at Xizhimen Station.
3. Walk about 420 meters and transfer to Daxing Line of Metro Line 4.
4. Take Daxing Line of Metro Line 4, pass 2 stops and arrive at National Library Station.