Polarization imaging detection technology in the complicated environment on the recognition of target detection enjoys obvious advantages and broad prospects. Polarization properties of atmospheric transmission channel environment are particularly important. The parallel plates convection device is adopt to develope simulation of atmospheric turbulence. Based on this, experiments are conducted to study the change regularity of the polarization of laser transmission characteristics under turbulent environment, combined with the laser emission and polarization parameter detection device. The results show that linearly polarized light will appear obvious depolarization phenomenon passing through the atmosphere, but circularly polarized light shows weak depolarization phenomenon, which is very good to maintain the original rotation to continue transmission, and the strong turbulence affects more heavily than weak turbulence on the polarization transmission. The results prove circularly polarized light transmission polarization can maintain good performance in the atmospheric channel.