Abstract: In this paper,the method of wind direction sector division is considered,by calculating the time dimension variation of wind direction in a specified period of time,the transfer probability matrix model of natural wind direction change under typical wind conditions in Hohhot suburb is constructed by using the theory of statistical method,Markov chain model and the measured natural wind data of the experimental base,based on this model,a random time series is generated to verify it in reverse,the purpose is to establish a more complete wind modeling.