Currently, countries worldwide attach great importance to the development and application of military simulation experiment technology, which plays a key role in improving combat capability, supporting equipment demonstration, promoting the innovation of tactics and methods, optimizing joint operation processes, and supporting technology research, development, and verification. This paper provides an in-depth analysis of military simulation experiment technology. It first elucidates the core concepts, logical processes, and the close connections among model classifications. Then, starting from the top-level architecture of military simulation software, it deeply analyzes mainstream simulation engines, frameworks, and typical systems to demonstrate their support for military simulation experiment technology. Finally, it explores the application prospects of new technologies such as artificial intelligence and the Metaverse in military simulation, comprehensively presenting the overall architecture and development trajectory of military simulation experiment technology.