In view of the problems of complex management mode, insufficient digital design capability, mismatch between capability and requirement, and difficulty in equipment maintenance and support in the development of military industry, this paper carries out related research from the aspects of digital engineering promotion mechanism, digital capability requirement analysis, and digital engineering construction standards, and analyzes the main problems faced by foreign research status and weapon equipment development. Some suggestions are put forward to promote the application of digital engineering in weapon equipment. The results show that the research has guiding significance for promoting the digital transformation and development of the whole military industry.