Do you mean the way from Xiamen North Station to Xiamen University (Siming Campus)? You can take the subway 1 line and transfer to bus B3.

1. According to Baidu map query, it takes 1 hour 12 minutes to take the subway bus from Xiamen North Station to Xiamen University (Siming Campus), and the whole journey is 30.8 kilometers. Walk 10 meter from Xiamen North Station, take the subway 1 line at Xiamen North Subway Station, and get off at Zhongshan Park Station.

2. Walk180m to Xiamen Hotel Station, take B3 bus, get off at Daxicun Station in Xiamen, and walk for 220m.