Based on the needs for accurate analysis of the wind speed data of the scatterometer (WindRAD) onboard Fengyun-3E (FY-3E), this paper uses multi-source data from models, satellites, and buoy stations to evaluate the quality of satellite wind speed products with all wind speeds in multiple dimensions by using triple collocation(TC). Comparing the deviation characteristics of multi-source data, it is found that the deviation characteristics of FY-3E depend on different sea states and frequencies.The additive, multiplicative and random errors of four independent observation sources are analyzed by using triple matching collocation method.Taking the buoy as an unbiased observation source, it can be found from the error analysis of multi-source data that the negative deviation of the additive error of C-band wind speed is larger, the deviation of Ku-band and Dual-band wind speed is similar. The multiplicative error of C-band is best,and their random errors are similar.Among the independent sources, the root-mean-square-errors (RMSE) of the buoy are the smallest, and the two satellite products are similar and larger than that of the buoy, and the RMSEs of the model are the largest. In summary, FY-3E WindRad can provide high-precision wind speed products, but the main problem is that the consistency of products in different datasets needs to be optimized. The research results of the accuracy of satellite products in this paper can provide more comprehensive and reliable information for satellite product users, and provide a basis for objective calibration methods for predicting offshore gales by numerical models.