Hi, could you advise how to go from Middle Zhongshan Road to Hangzhou Xiaoshan Airport?

Do you mean the Middle Zhongshan Road in Jiande City? If yes, you can take shuttle bus from Jiande Bus Station. The shuttle bus departs at 7:20, 9:00, 13:10, 16:00. The duration is about 2 hours and the bus fare is about CNY60. I haven't found any public transportation from the Middle Zhongshan Road to Jiande Bus Station, so may be you need to take taxi and the fare may range about CNY70-80.

Nope, I mean Zhongshan middle road near west lake. And it's near Ding An Metro Station. Could you advice how to go to airport with public transport ? Because I search from some source, If I'm not wrong some of the station line was not available at the moment. Thank you

You can take metro from Ding An Road to Jiangling Road. Get out of the A Exit and walk northeast about 350m to take Shuttle Bus Binjiang Line to the airport. The bus operates from 6:00 to 18:40 with an interval about 1h and the ticket costs about CNY20 per person.