Abstract: Based on the observation data of 10m wind tower and a part of the regional automatic observation stations in recent 40 years in Liangshan,the yearly,seasonal and daily changes of wind speed and the frequency of wind speed,effective hours of wind speed and the average density of wind speed of representative observation station are calculated and carried out to statistics,meanwhile the observation data is also analyzed considering the landforms.The results indicate that: terrain effect of wind resources is obvious,and the wind direction is stable but seasonal changes of it are striking in Liangshan;the wind resources of the area surrounding the Anning River are so abundant that can be developed and used easily;the wind resources can be used seasonally at some flats,laks and valleys in the counties of Yanyuan,Puge and Xide;in most parts of Leibo,Jinyang and Muli,the wind resources are poor with little use value.