To analyze the subsea-slope stability affect by the wave load,we use Visual C# software language platform to develop an application programming interface and realize the data transfer between the Gocad and Abaqus.With the basic contour map,the complex seabed topography could be 3-D modeled in Abaqus.We also develop a program to treat the mechanics field in Abaqus and realize the stability analysis of subsea-slope by the strength reduction method.Based on the analysis of the subsea slope stability of Zhujiajian island in Zhoushan,we adjust the the stability of the side slope.The calculation result shows that wave load will exert certain impact on the subsea-slope,and the subsea-slop near Zhujiajian island faces landslide risk.