The climate characteristics of the last heavy rain of Mei yu period in North Zhejiang province from 1961 to 1995 was analysed. By analyzing circulation situation,temperature advection and height field change at 500 hPa,the climate regulation of the last heavy rain of Mei yu period in North Zhejiang province was presented. The results showed that the last heavy rain was related to the South eastward Mongolia warm high,the eastward Plateau warm high and daily mean height rising over Mongolia or the Plateau. The forecasting focus of the last heavy rain of Mei yu period in the North Zhejiang province was suggested.