Abstract: On the premise that the wind farm is roughly located and there are several months' wind data available,a model with relatively high speed and accuracy is provided to calculate the parameters of wind energy in the selected site.Through calculation and comparison,the Total Probability Scheme is chosen to emend the original wind speed and direction,then Differential Method is used to revise the standard error,and finally the Parametors of wind energy are calculated by means of Weibull Scheme.