A few observation samples of atmosphere particles are collected. Based on Mie scattering theory, atmosphere volume scattering polarization degree is simulated and analyzed in visible and infrared band by solving the Mueller matrix. The results show that atmosphere volume scattering polarization is positive as a whole. The polarization of incident light does not change in forward scattering angles, but it is slightly negative in backward scattering angles. Atmosphere linear polarization degree varies smoothly with scattering angle, and gradually approaches to Rayleigh scattering when scattering scale parameter decreases. Scattering scale parameter and particle complex refractive index are determining factors of atmosphere linear polarization degree. In the visible light and near-infrared band, the linear polarization degree of fog changes less with wavelength, and varies with scattering angle as multi-peaks distribution. The linear polarization degree of fog reaches maximum at scattering angles of 120°,140° and 180°. In the infrared band, the linear polarization degree of aerosol changes less with wavelength, and varies with scattering angle as single-peak distribution. The linear polarization degree of aerosol reaches maximum at scattering angles between 80° and 140°.