The concepst of Vertical-plane and Horizontal-plane scattering angle of forward laser paraxial were proposed based on CMOS. The dynamic image sequence of light scattering by simulated bubble film, which was captured by CMOS, can be expressed by an image sequence matrix whose line vector and column vector represented one frame image through computing gray average of column pixel and line pixel of the frame image. The gray distribution and evolution characteristics of 100 frame image sequence of forward light scattering by bubble film generated under presser 0.005 and 0.01 MPa, was analyzed qualitatively through calculating the mean horizontal and vertical gray, as the dynamic range and correlation of 5 frame image was analyzed quantitatively. Through analyzed the dynamic image scattered by bubble film with the increasing pressure on CMOS, the range and amplitude of horizontal and vertical gray of forward light scattering image sequence increased as the increasing scale, number density and rising speed of bubble film.