In order to analyze the factors of settlement of soft foundation in marine reclamation land project, as a professional geotechnical engineering finite element software, the PLAXIS is used in this paper, and learn from Japan 's Kansai airport project experience data, soft soil creep model is used and consolidation settlement and pore pressure dissipation of the numerical analysis of the entire area is done. It also draw out the settlement and pore pressure results of different base period in figure comparative analysis, and the different depth of soil pore water pressure dissipation trends. In addition, this paper carries out the necessary sensitivity analysis and obtains the law of the main parameters in soft soil creep model on the results of settlement, and its corresponding results for marine reclamation land project to provide reference and guidance. Moreover, it is suggested that the empirical method of the creep index value has not been applied widely, further research needs to be done.