Abstract: Pile-anchor retaining is preferred to be chosen in ultra-deep foundation pit or deep foundation pit that has bad condition.Among the methods in designing pile-anchor retaining system,Shanjianbangnan method is convenient by manual calculation that has little workload,and it can ensure the safety of the engineering as it considers the most dangerous force condition in each calculation step.The theory of the method is introduced first,then the foundation pit support design by the method is taken based on a project in LinYi city.The numerical simulation is taken to validate the feasibility of the design.It gives a reference to the same engineering.