Safety assessment is carried out for the wharf by establishing two finite element models by ANSYS. The result shows that contact element shall be set between the caisson and rubble-mound foundation when calculating the rubble-mound foundation’s stress to guarantee a safer and more reliable result. The sliding stability and resistance to pour stability of wharf are also calculated and analyzed. It is shown that the calculation for wharf’s safety assessment using ANSYS is simple in calculation and the calculated results is reliable.