Abstract: Strip mining is an effective method for mining without destroying water resource currently.Its key technique is that the ratio of mining and remaining is designed reasonably on the basis of real hydrogeology conditions.Based on the design of mining without destroying water resource for Shawan Colliery in Shanbei Yuyang Area by some design institute,the technique parameters rationality of strip mining is analyzed.The mechanics procedures of surrounding rock damage with different ratios of mining and remaining are simulated by RFPA2D of Northeast University and the technique parameters of strip mining without destroying water resource in low-burying coal seam are put forward.Results are gotten as follow: the whole mechanics model calculation of "surrounding rock-coal pillars group" should be needed;only the coal pillar group is stable in long time,water body（aquifer） can be protected from damage and the mining without destroying water resource can be realized.