Abstract：The formation of the landslide，influencing factor of the landslide stability，characteristic of sliding surface and earth slide are analyzed，and the slope stability before and after landslide is calculated. According to the characteristics of the landslide，the synthesized measures of retaining and draining are considered for environmental geology. The economic developments of the human activity and the engineering activity should obey the nature regulation. At the same time，the mutual function of the engineering developments and the geology environment should be carefully considered. The derived results show that the method is feasible，and it can provide reference to other landslides treatment.
