In order to speed up the militarized application process of 5G technology and improve the information support level of our army, introduces the 5G network architecture and key technologies, analyzes the characteristics of 5G technology, combs the construction and research status at home and abroad, carries out military demand analysis based on multi-view method, points out the military application potential of 5G, and proposes to build 3 typical military application environment. Finally, based on the conclusion of the comprehensive analysis, the paper puts forward some thoughts and suggestions for the development of military 5G system in China. The analysis results show that the 3 application modes can fully explore the potential of 5G application in the military field, and provide a reference for the development and application of 5G technology in the army.