The invention relates to a rapid spherical coordinate laser radar simulation method, and discloses a rapid simulation method for a laser radar. A CPU and a GPU perform collaborative operation; the CPUperforms partial initialization operation; the GPU performs coordinate conversion on vertex coordinates of triangular surfaces in a vertex shader; in a geometric shader, each triangular surface is changed into a rectangle composed of two triangles, and the coordinates of three vertexes ABC of the original triangular surface are mounted and output; and in a fragment shader, ray detection is performed on the triangular surface, collision point coordinates are calculated, and an output of the laser radar is calculated and mapped to a space (R, G, B, A). According to the method, traditional render pipelines are used, most types of display cards are compatible, and the acceleration performance of the modern display card can be obtained; and meanwhile, the problem of equidistant sampling in laser radar simulation is solved, and the high-speed and high-precision equiangular sampling is realized.