For the foundation of low altitude flight safety service, based on the detection database collected at the northeast of China form July to September in 2015 and using a Chinese new all-fiber coherent wind lidar combined with a double theodolite pibal and wind profile radar, the wind measurement precision and reliability of this new wind lidar are evaluated by comparing the correlation of laser radar, the wind profile radar and pibal wind detection under clear-air, cloudy, foggy and hazy, and rainy conditions. The results show that, under clear-air, cloudy, foggy and hazy conditions, the wind lidar is more accurate than the wind profiler lidar, and the standard deviation between horizontal wind and real value error is less than a half of wind profiler lidar. During the rainy day, the detection range of wind lidar is limited, and the maximum observed altitude decreases to only half of the wind profiler which shows a severe influence compared with wind profiler under percipitation. The wind lidar results are more stable than that of the wind profiler. The dataset correlation coefficient, which can reach up to 0.9, between the measured data detected by the wind lidar and the real value has a tiny change. Under clear-air, cloudy, and fog and hazy conditions, the wind accuracy of two lidar are both affected by the variation of wind speed, meanwhile, the change trends are different as the wind speed increases.