The Low Impact Development (LID) measures are the effective methods for urban rainstorm management, and are widely used in the construction of sponge city. To evaluate its hydrological effect, taking the Minzhi river basin in Shenzhen as the research area, the SWMM model is constructed. Three LID measure projects are designed, and the runoffs before and after the construction of the three LID measures at rainfall situation with different design return period are calculated respectively. The results showed that the LID measures, such as permeable pavement and concave green space, have different degrees of delay effect on flood peak time and different degrees of reduction effect on flood peak and volume of runoff, and the reduction effect decreases as the rainfall return period increases. The best results can be achieved by the combination of permeable pavement and concave green space at the same time, and they will play a better role of runoff control.