The invention discloses a method for planning a route of a laser radar unmanned aerial vehicle. Through acquiring a position range of a to-be-planned area, the route of the to-be-planned area is generated according to a route setting parameter. Then a frontend route which comprises a W-shaped or an M-shaped sub-route is automatically added at the starting position of the route. At an ending position of the route, a tail-end route which is perpendicular with a last route segment of a route ending position is automatically added. Specialty of the laser radar is considered in a route planning period. Specific frontend and tail-end routes are added. A complete laser radar route is generated. The method has advantages of realizing pertinency, improving photographing effect, preventing defects of long time consumption and high error caused by manual adding, improving plotting efficiency and quality of an air plane, improving unmanned aerial vehicle utilization rate and modeling accuracy, andfinally improving working efficiency of the unmanned aerial vehicle. The method can be widely used in the laser radar unmanned aerial vehicle route planning field.