A seawall is the main subject of the coastal reclamation,and the accurate calculation and the control of the overall sliding stability of the seawall are the key points of the successful completion of the whole reclamation projects.The Sweden slice method and the simplified Bishop method are two overall anti-sliding stability calculation methods which are commonly used at present.Considering the influence of pore water pressure,these two methods are compared from the aspects of the calculation principle,the basic assumption,the derivation and simplification of formula and so on,and the relationship between two methods is obtained.Then a typical project of soft embankment along the coast of Fujian province is calculated using these two methods,further demonstrating the relationship between the two methods.