In order to distinguish the non-spherical haze particles with different physical characteristics, the haze detection model of "solar-blind" ultraviolet backscatter is established to simulate the process of UV backscatter under the condition of non-spherical haze, based on T-matrix theory and Monte Carlo method. The peak power and the full width at half maximum of UV pulse with different widths are analyzed. The simulation results show that when the haze concentration is less than 500 μg/m³, the peak power of backscatter echo of UV pulse increases with the increase of haze concentration, and there is a linear relationship between the peak power of pulse echo of different concentrations of haze, and the full width at half maximum of pulse echo decrease with the increase of haze concentration. For ellipsoidal and cylindrical haze particles, under the same concentration, the smaller the shape variable of particles is, the larger the peak power and the full width at half maximum of pulse echo are. For chebyshev haze particles, under the same concentration, the larger the deformation parameters and ripple parameters are, the larger the peak power and the full width at half maximum of pulse echo are. The results of this study can provide a basis for the detection of haze concentration and the discrimination of non-spherical haze particles by ultraviolet light.