In order to solve the traditional wind power equipment problem of energy recovery interval is narrow,state stability is poor when high wind speed condition,through the introduction of geometric type hydro- mechanical CVT in the traditional wind power generation system,a new type of high load transmission ratio variable type wind power generation system layout scheme is obtained. Finally,through numerical modeling method,the new transmission scheme of arrangement theoretical modeling is built,the law of variation of the main parameters before and after introduction of CVT of wind power generation system is researched.