Based on the characters of aerosols′ generation and evolution in partial areas, the morphology characters of the coated axisymmetric, non-spherical aerosols particles with typical symmetrical structure were studied.A T-matrix method to calculate the coated aerosols particles′ scattering characters was introduced to the calculation of the scattered characters of a non-spherical particle coated by an ellipsoidal particle.As an example, the two typical distributions of the coated aerosols′ scattering phase function were provided in propagation of laser wavelength 1 064 nm.The results were applied to the multi-scattering phenomena in laser signal propagations through dense aerosols, with the use of the Monte Carlo ray tracing method in the scattering and the applications of laser signals′ breadth calculation in atmosphere.Because of the multi-scattering, the laser signals′ pulse width enlarged 3 μs and 4 μs corresponding to distance 3 km and 5 km.At last, it was pointed out that the aerosols′ scattered characters are influenced by the morphology characters, typical size, chemical components, the densities of the particles etc., the aerosols′ scattered characters influence obviously on the laser signal′s atmosphere propagation in dense aerosols.