I want to go to SHANGHAI from YIWU what is the best way is there any fast/Bullet train

From YW to Shanghai, the bullet trains to reach Shanghai Hongqiao Raiwaly Station is suggested.

For the detail timetable and fare of the bullet trains, you can refer to https://www.travelchinaguide.com/china-trains/ to search for it.

Upon your arrival at Hongqiao Railway Station, you can catch the local subway line 2 to PVG directly. Or walk to Hongqiao Airport to catch shuttle bus line 1 to PVG in around an hour.