Abstract:

Since 1970s，the city and the area have experienced a dramatic transformation； city region has gradually become the main organizational form of the region to participate in the competition. Compared with the studies of the urbanization，city regulation，regional cooperation，the studies focused on the microscopic mechanism of formation of integration development still need to be strengthened. Shanghai，Suzhou，and Nantong which located at both sides of the Yangtze River constitute a geographical sense of mouth of the Yangtze River delta. Based on the theory of spatial interaction of the area which focus on the complementary，transportability and interventional factors in the region，this article studies the industrial economic integration process and the mechanism of time and space between three cities. It is founded that the industry economic integration between the three cities has experienced from weak to strong，simple to complex relationships along with the complementary，transportability and interventional changes. After 2005 especially，due to the enhanced trend of regional competition and cooperation，the regional strategic orientation and policy of Shanghai designed to remodeling the regional status through upgrading the industrial structure make ShanghaiSuTong economic relations enter the orbit of integration reconstruction. It is confirmed that a strong network of industry economic integration pattern has formed. To improve the cooperation between regions，amplifying the complementary，reducing irrational competition
should be strengthened further.