In order to improve the production safety of polymer bonded explosive (PBX) grain and the damage power of ammunition, the compression molding method was analyzed. The research status of the relationship between the density and the mechanical properties of the explosive column is introduced, and the research progress of the influence of the molding method and process parameters on the quality of the explosive column and the damage of the explosive particles in the process of compression molding are introduced respectively. The results show that the study can provide a reference for the further study and technology development of the mechanism of PBX compression molding.