Due to the limit of environmental,space,power consumption,conventional ammunition laser fuze is hard to achieve echo focus by using traditional beam shaping method.Aiming at the problem that the target echo energy of conventional ammunition laser fuze is low and the detection distance is limited,acorrding to aspheric optical design theory,a single-stage aspherical optical shaping method based on aplanatism principle is proposed.The ZEMAX optical theoretical model of laser receiving system is built to analyze the optical shaping capability under different conditions.Simulation results show that compared to the traditional single-stage spherical optical receiving lens,the center irradiation luminance of shaping spot can be enhanced by three times through the single-stage aspheric optical receiving lens.Based on the theoretical analysis,the beam shaping comparative experiments are done to test shaping spot sizes and its distributions under different conditions.Experimental results show that through the single-stage aspheric optical receiving lens,the spot can be effectively compressed and the laser echo energy can be gathered.