The invention discloses a method for achieving laser radar scene simulation on the basis of GPU programming. The method mainly overcomes the defect that in the prior art, the physical reality sense of laser radar effect simulation is poor, so that dynamic rendering imaging cannot be performed. The method includes the steps of importing a three-dimensional model into a program, obtaining the position and normal information of each peak, obtaining parameters required for calculating a BRDF by means of experiments or instrument measurement, saving material type labels, normal incidence reflectivity, rough factors and isotropic factors into DDS data texture, sampling the data texture in a fragment program, obtaining the normal incidence reflectivity, the rough factors and the isotropic factors of different positions, combining the positions and the normal information of all peaks of the three-dimensional model, calculating laser luminance values of the different positions in a scene in the laser receiver direction according to a reflection model of the BRDF, and quantizing the laser luminance values into 8-bit gray values for displaying. The method can achieve dynamic imaging, is strong in reality sense, and can be applied to laser guidance and target detection.