[Objective] To understand the soil water movement in vertical one-dimensional infiltration in layered soil.[Methods] A mathematical model for soil saturated and unsaturated water movement in vertical one-dimensiona was established based on unsaturated soil water movement theory, and the SWMS-2D software was used to solve the model. Using the existing literature, the simulation results of homogeneous soil and layered soil were verified by the measured values of soil moisture content, soil wetting front, cumulative infiltration and infiltration rate in laboratory test.[Results] The simulation result agreed well with measurement values, and the proposed numerical model is applicable to both homogeneous soil, and layered soil.[Conclusion] The model can truly reflect soil water movement in vertical one-dimensional infiltration in homogeneous soil and layered soil. The SWMS-2D software can be used to simulate the soil water movement of vertical one-dimensional infiltration in layered soil.