Based on the finite difference time domain method, the effects of multiple factors on the scattering angle distribution of redundant nodule particles in optical media films are studied. The complex scattering of redundant nodule particles in optical media film is modeled, and according to the classic half space problem, the total scattering field is decomposed and the corresponding field phase is solved and the mesh division rules are given. The numerical results are reduced to redundant spherical particles and MOM method (Method of Moments) are compared to verify the validity of the program in detail. The influences of incident angle, axial ratio and inlay height h on the differential scattering cross section of Cu and SiO2 inlaid particles with scattering angle under p polarized light are analyzed. The results show that the maximum peak of the differential scattering cross section occurs at the mirror plane of the incident angle. The differential scattering cross section near the specular scattering area decreases with the increase of the axial ratio of flat redundant particles; the rules of influenced by the axial ratio of prolate ellipsoid particles are opposite. In the region of the scattering angle [-90°, -60°], differential scattering cross section is directly proportional to the height of redundant particle inlay. The scattering properties of dielectric particles are affected more by the inlay height.