Wangjiabao Landslide is located in the northern Sichuan Basin,Guangyuan. The sign of landslide deformation is mainly to surface deformation. In this paper, qualitative analysis and quantitative analysis are used to landslide stability analysis and calculation. The results show that Wangjiabao landslide is stable in natural condition or seismic condition and basically stable in storm condition. Based on the above results, a reliable basis for the prevention and treatment project is provided.