According to Baidu map, Nanjing Confucius Temple to Sun Yat-sen Mausoleum subway takes Metro Line 3 and Bus No.34..

1. Get on the train at Confucius Temple Station, and get off at the Daxing Palace Station (exit of Metro Line 3) at two stops.

2. Get on Bus No.34 at Daxing Palace East Bus Station and get off at Sun Yat-sen Mausoleum Parking Station after 1 stops.