How to take the subway from Beijing South Railway Station to Beijing Home Inn Xizhimen? Which line do you take?

Home Inn Beijing Xizhimen is located at No. 3 Yongxiang Hutong, Xizhimen Nei Street, Xicheng District, Beijing (near the northeast corner of Guanyuan Bridge on the West Second Ring Road; Exit B of Chegongzhuang Station of Metro Line 2, Walk 200 meters for about 3 minutes).

So you first take Metro Line 4 to Xizhimen, then transfer to Metro Line 2 inside Xizhimen and get off at Chegongzhuang Station. After getting off, come out from Southeast Exit (B) and then walk along the road. Go straight north to Guoying Hutong, then turn right and walk a little further.