As one of the renewable energy sources, wind power has gradually become one of the important supports for China to achieve the carbon peaking and carbon neutrality goals, and offshore wind turbine is often affected by extreme wind conditions such as typhoons. In this paper, the numerical simulation study on the influence of vertical wind veering of horizontal wind on wind turbine caused by typhoon is carried out. The computational fluid dynamics (CFD) model without wind veering and the model considering wind shear are established respectively. The simulation results show that the vertical wind shear in the horizontal wind not only causes asymmetry in the wake but also enhances the wake effects of the wind turbine. At the same time, wind veering has obvious influence on the base load of wind turbine, which leads to the increase or decrease of force and moment in all directions.