I am also at Wudaokou. .

Route 1: Take bus No.307 from Wudaokou Station to Zhongguancun, take subway line 4 at Zhongguancun Station, get off at Guo Tu, and then take line 9 directly to West Station.

Route 2: Take Wudaokou subway station to Xizhimen or Zhichun Road, transfer to Line 4, take the national map and transfer to Line 9.

These two lines are good, but sometimes the bus will be blocked badly, and the subway may detour, but it will not be blocked. . . So choose one according to the specific situation ~