Abstract: CLDAS and ERA5-Land hourly 10m wind grid products in 2019 were interpolated to 156 national stations and 1768 regional stations in Sichuan by bilinear interpolation method and compared with hourly observation data. Each product was evaluated through indicators such as ME,MAE,RMSE,and COR. The results show that the two products underestimate the wind speed of national stations in Sichuan. However,there is an underestimation of the plateau regional stations and the overestimation of the basin regional stations. Besides,all evaluation indicators of wind speed in plateau areas are worse than those in basin areas,the grid wind products should be used cautiously in plateau areas. CLDAS is better than ERA5-Land for all evaluation indicators of national stations. The ME,MAE,and RMSE results of regional stations of the two products are similar,but there is less error between CLDAS and non-independent regional stations in comparison. The ERA5-land wind is not well correlated,which is contrary to the variation trend of ground wind speed observed in Sichuan.