Abstract: Because of the special geographical location, Sichuan province is known as wind energy resource-poor areas, and the complex terrain makes the wind resource assessment and detailed investigation more difficult. Used with wind data and numerical simulation results, the wind energy resources and the results of the detailed investigation in Sichuan province were analyzed. The results showed that the spatial distribution of wind energy resources were mainly concentrated in the western Sichuan Plateau, west hills and mountains around the basin, especially in the ridges and valleys affected by the high-altitude wind momentum downstream and terrain gap tube effect, and the potential wind energy development zones were located in Liangshan if considering the other adverse factors such as high altitude, large terrain slope and so on. There were 3-level wind energy resources zones in the eastern and southern areas of Liangshan from the results of detailed Investigation, which could be used as key wind energy development zones.