Combining with an engineering case of a foreign breakwater under soft soil geologic condition, we carry out the stabilization and deformation analysis of the whole process of breakwater construction simulation of finite element method based on Biot consolidation theory, and compare the result with that by conventional calculation method. We also expound the application of foundation stabilization calculation according to the European Standard and the British Standard, the formula derivation of excess pore water pressure stability control standard, the analysis of drainage plate and wave loading on foundation stabilization. The result may serve as reference for foundation stability analysis of the breakwater engineering.