Transfer from Metro Line 2 to Metro Line 3. According to Baidu map, Nanchang West to Wangfujing needs to take Metro Line 2 to Metro Line 3, which is 21.8km apart. The specific bus routes are as follows:

1. First, take Metro Line 2 at Nanchang West Station. After passing 12 station, get off at Qingshan Road intersection station.

2. Secondly, transfer to the station and walk150m. Take subway line 3 at Qingshan Road intersection station, and get off at Crossstreet Station (3-2 Wangfujing Exit) after 5 stops.

Finally, walk 90 meters to get there.