Take the inner ring of Metro Line 2 → Metro Line 5. According to Baidu map, the distance from Beijing Railway Station to Dongdan Campus of Union Medical College Hospital is 3.5 kilometers, and the whole journey takes 20 minutes. Take the inner ring of Metro Line 2 → Metro Line 5 to get there. The specific route is as follows:

1, go first 10 meters, arrive at Beijing Station, take the inner ring of Metro Line 2, pass 1 station, and arrive at Chongwenmen.

2. Secondly, walk 180m to Chongwenmen, take Metro Line 5, and after two stops, reach dengshikou.

3. Finally, walk 540 meters to the Dongdan Campus of Union Medical College Hospital.