Abstract: The structural complexity of typhoon leads to a huge difference in wind load characteristics of wind turbines when they are in different typhoon life cycles. At present, the research on wind loads for wind turbine typhoon transit process is rare. On the basis of summarizing the research results of typhoon measurement, a new typhoon field simulation method considering the transit process effect was established. The 5 MW wind turbine designed by National Renewable Energy Laboratory was taken as an example, and the wind load distribution characteristics of large horizontal axis wind turbines in the whole process of typhoon transit were studied systematically. The results show that the wind field simulation method or the wind turbine considering typhoon transit process proposed in this paper can effectively simulate the wind loads characteristics of the wind turbine during typhoon transit. The wind force in the typhoon eye wall interference stage is significantly greater than that in other typhoon transit stages. It should be noted that the typhoon effect of the back eye wall stage after the typhoon eye is still very significant, and the extreme values of bending moment of the blade and the tower respectively reach 92.83% and 93.97% of the values during the front eye wall stage. Besides, bending moment at the bottom of tower is dominated by the M_y during the FOVS, TES and BOVS, but the M_x is the dominant bending moment during the FEWS and BEWS. The above conclusions indicate that the focus of large wind turbine anti-typhoon structure design should be treated differently from normal shutdown condition. The conclusions of this paper can provide data input and reference basis for further research on large wind turbine anti-typhoon design.