[Show abstract][Hide abstract] ABSTRACT: Aiming at the immersion problem which is caused by the impoundment of Shi fosi Plain Reservoir, this paper takes advantage of the Visaul Moldflow software in order to build a Coupling model of surface water and ground water. With the help of this model, to simulate the influence of different schemes of well placement to the immersion problem when reservoir water levels are not the same. Then choosing an optimum control scheme. Not only control the immersion of Shi fosi Reservoir impoundement, but also offer water supply for the district of northern Shenyang. This study will provid a strong sentific basis to solve the problem of after impounding immersion of Plain Reservoir.