Ammonia sulfate, sulfuric acid, nitrate, carbon and organic carbon aerosol particle cluster are analyzed. Based on the model of cluster-cluster aggregation(CCA), the aerosol particle clusters with different compounds and shapes are simulated. Optical scattering of aerosol particle clusters is calculated by using discrete dipole approximation method (DDA). For these particle clusters, the variation of the efficiency factor with size parameters, the variation of scattering field intensity with the scattering angle and the variation of polarization degree with the scattering angle are obtained and analyzed. The calculation can be used for the analysis of the characteristics of fog haze and the light propagation in atmosphere.