In order to study the effect on laser propagation in the atmospheric turbulence,the model of intensity distribution on the receiver plane was derived based on laser propagation in the atmospheric turbulence.And the parameters like structural constant of atmosphere refraction coefficient,propagation distance,aperture of transmitter and receiver plane,and extended area caused by atmospheric turbulence were analyzed which impact on laser intensity distribution.This research focused on the effect on laser propagation in the atmospheric turbulence and proposes some methods to restrain the influence of turbulence.