To acquire a reasonable and accurate monitoring method for the pile-supported wharf in Shanghai seaport,we firstly calculate the pile-supported wharf with the finite element method (FEM) and using ANSYS software to analyze the whole 3D model.According to the result of ANSYS calculating,we get that the threatening bigger strain points on the wharf which are to be monitored in the actual place on the wharf.Comparing the monitoring data and the analyzing result,we find that the two groups of data have the similar trend of high-pile wharf mechanical performance.Each cross shelf plays an obvious role in the impacting of ship.