Doppler wind lidar (DWL) is the tool with high accuracy and high temporal and spatial resolution. Wind has been detected with DWL and its data are analyzed. The fundamental of transmission of laser in atmosphere based on aerosol and molecule scattered and principle of Rayleigh Doppler wind lidar discriminating frequency based on Fabry-Perot (FP) etalon, the framework and parameters of the DWL are presented. The results from DWL are compared with wind profile radar (Airdal 6000) and Balloon, in the lower atmosphere its maximum wind speed error is 1.2 m/s and direction error is 9°, its minimum wind speed error is 0.1 m/s, while in the higher atmosphere its maximum wind speed error is 2 m/s and direction error is 12°, its minimum wind speed error is also 0.1 m/s. Experimental results indicate good agreement. The precision of the DWL is analyzed, and the incidence angle, emanative angle, signal noise ratio and parameters of detector are the master factors affecting the precision. From the transmission curve of FP etalon, the actual error of DWL is calculated and it is 2.07% higher than the simulated value.