Abstract: In view of Doppler wind lidar has found widespread applications in aerospace, aviation, space-based remote sensing and atmospheric observation, several typical coherent Doppler wind lidars with different bands are introduced in combination with the principle of coherent detection. Some key techniques such as laser transmitter/receiver, space scanning and data processing are analyzed. In addition, the wide prospects of application are expected. The results indicate that we are still lagging behind developed countries in the field of coherent Doppler wind lidar to a great extent though some achievements have been made.