The strong convective cloud cluster is one of the important research objects in the meteorology field. The polarization radiation characteristics of strong convective cloud clusters are studied by using the observation data of the atmospheric aerosol multi-angle directional polarimetric camera (DPC), which provides multi-dimensional information for the identification of strong convective cloud clusters. Taking strong convective cloud clusters, typhoon cloud clusters, and non-precipitation cloud clusters as examples, the research shows that the reflectivity of strong convective cloud clusters is higher than that of non-precipitation cloud clusters, and its spatial distribution is more uniform. Most part of the developing strong convective clusters are ice crystal particles, and only the edge part has liquid water, while the phase distributions in other non-precipitation clouds are quite different. Under similar illumination and observation geometry conditions, the dispersion of the polarization angle spatial distribution of the strong convective cloud clusters is larger than that of non-precipitation cloud clusters, and there is a large difference between the average of polarization angles. The polarization angle image of the strong convective cloud cluster can well characterize its contour characteristics.