i want to go hongqiao airport to shaoxing ? which one is the best car, railway or air?

Hi, to take the train may be a good choice for you. From Hongqiao Airport, you can walk to Shanghai Hongqiao Railway Station. There you can take a bullet train to Shaoxing in about 100 min. It costs about CNY 65 for the second-class seat and CNY 78 for the first-class seat.