Located in the northeast of Zhejiang province, Jiaxing city is the  center  of Hang-Jia-Hu Plain in the Yangtze River Delta. It is between latitude 30°21＇and 30°2＇north, and longitude between 120°18＇and 121°16＇east, facing the sea in the east ,leaning on the Qiantang River in the south, bearing on the Tai lake in the north, and connecting with the Tianmu Mountain in the west. The Grand Canal crosses the region. With Shanghai on the east, Suzhou on the north, Huzhou on the west, and Hangzhou on the south, Jiaxing enjoys a favorable geographical position because it is less than 100 kms to these cities. The whole area is facing Ningbo, Shaoxing, and Zhoushan etc across the Hangzhou Bay, and the network of highway, railway and waterway radiates in every directions.

With the length of 92 km in the east and west, the north and south is 76 kilometrers wide, the whole land covers an area of 3,915 square kilometers, including a 3477 square kilometers of plain, 328 square kilometers of water area, 40 square kilometers of hills, as well as a 4, 650 square kilometers of sea.

The terrain of the whole city is low and flat which is 3.7 meters above the sea level. Among all the districts, the terrain of Xiuzhou District and north Jiashan is the lowest one which is 3.2 meters to 3.6 meters above the sea level, especially some places which is only 2.8 meters to 3.0 meters above the sea level. More than 200 hillocks are seperately distributed along the northern bank of Hangzhou Bay, which is less than 200 meters above the sea level. The highest peak of the whole region is the Gaoyang Mt, where Haiyan county ties with Haining city. The whole area is low-lying land shaped in a flat saucer, along the Tai Lake, whose terrain slants from southeast to northwest. By thousands of years’ exploit and development, the plain is divided by some pools and tunnels that intersect in length and breadth. Because of the intersected farmlands, dry lands and water, it develops the structure of a stereoscopic terrain, called “60% farmland, 10% water, 30% dry land.” Where people plant mulberry trees in the dry land, grows crops in the farmland, foster fishes in the pools. The whole area has a typical water town characteristic.