Laser remote sensing technology is a kind of active remote sensing technology which can acquire the 3D spatial information of the atmosphere accurately and quickly.The basic measurement method is emitting a series of laser pulses.The elevation information of the target on the earth can be acquired by detecting the reflected laser pulse echo delay.The echo signal can be received by the detector after the beam being reflected by the object.The distance between the detector and the target,azimuth and its characteristics can be determined by detection and analysis on the echo signal.Echo energy is used to generate the surface reflectance information.The resolution capability,the anti-jamming performance and measurement accuracy of laser remote sensing system is far more than the ordinary microwave radar.