Yuhang District of Hangzhou is located in the north of Zhejiang Province, at the southern end of Hangjiahu Plain, with Tianmu Mountain in the west and Qiantang River in the south, which is the center of the Yangtze River Delta. The geographical coordinates are 30 09' ~ 30 34' north latitude and119 40' ~120 23' east longitude. It is about 63 kilometers long from east to west and 30 kilometers wide from north to south, with a total area of about 1220 square kilometers. Yuhang District arches the central city of Hangzhou from east, north and west, with Haining in the east, Tongxiang in the northeast, Deqing in the north, Anji in the northwest, Lin 'an in the west and Fuyang in the southwest.