You can take the subway and taxi. According to Baidu map query, the specific route is as follows:

1. Subway: Shanghai South Railway Station takes Metro Line 3 (in the direction of Jiangyang North Road), after 5 stops, get off at Hongqiao Road Station, transfer to the subway 10 line (in the direction of Hongqiao Railway Station), after 8 stops, get off at Hongqiao Railway Station, and walk 10 meters to Hongqiao high-speed railway station.

2. Taxi: Starting from Shanghai South, passing through Humin Elevated Road and Jiamin Elevated Road, and passing through five traffic lights, it takes 39 minutes to reach Hongqiao high-speed railway station, 70 yuan.