The invention provides a laser radar. The laser radar includes a laser emitting module, a light splitting module, a scanning module and a receiving module. The laser emitting module is used to emit a pulsed laser beam; the light splitting module is used to divide the pulsed laser beam into N beams of incident light beams , and transmitted to the scanning module, where N≥2; the scanning module is used to reflect N beams of incident light beams to three-dimensional space, and is used to receive and reflect N beams of incident light beams reflected by the target to be measured in three-dimensional space. wave light beam; the receiving module is used to receive and process N beams of echo beams; the spectroscopic module and the scanning module correspond to form N sub-scanning fields of view, and the N sub-scanning fields of view form the total field of view of the lidar through field splicing. The laser radar of the present invention uses a spectroscopic module, so under the premise of satisfying the scanning field of view of the laser radar, less than N light sources can be used to reduce the cost of the laser radar, reduce internal heat generation, and reduce the volume of the laser radar.