The safety performance and initiation process of explosives are closely related to their high-temperature and high-pressure behavior. Therefore， it is of great significance to study explosives under high-temperature and high-pressure thus understanding their safety and initiation performance in depth. The structural evolution of twelve explosives under high-temperature and high-pressure is reviewed， including common nitroamine-based explosives represented by RDX and HMX， common nitroester-based explosives represented by PETN，nitro-based explosives represented by TNT， and new high-energy and low-sensitivity explosives represented by LLM-105 and TKX-50. The phase transformation processes of these explosives under high-temperature and high-pressure are summarized in detail， and the similarities and differences of the research results from different research teams on the same material are compared. This review provides a strong basis for the studies of structural evolution of explosives under high-temperature and high-pressure.