The article presents an analysis of the models of cooperation between organizations of the Russian military-industrial complex. A comparative analysis of domestic and foreign forms of cooperation between organizations of the defense industry, scientific organizations and organizations of the real sector of the economy has been carried out. Models of cooperation relations of organizations of the military-industrial complex are considered, the main participants of cooperation relations in the holding structures of enterprises of the Russian military-industrial complex are presented, formulations of the goals and objectives for building models of network cooperation are proposed. The results of the analysis of the consortium model of cooperation are presented, taking into account the tasks of diversification of the military-industrial complex. The comparative advantages of models of cooperation between Russian enterprises and enterprises of the countries of the European Union are considered. A comparative analysis of cluster and consortium models of cooperation has been carried out, a classification of forms and criteria for network cooperation of organizations of the military-industrial complex in the process of diversification has been developed, taking into account the current regulatory framework. The article systematizes the goals of cooperation between defense industry enterprises in the context of diversification and civil-military integration: technology transfer in the creation of innovative high-tech civilian and dual-use products, the development of new technologies, the commercialization of technologies and products, the development of a new line of activity and / or specialized competencies, a full-scale launch of dual and civilian products on the market, the development of territories; in addition, the components of models of network cooperation are proposed. As part of the development of scientific and methodological approaches, the requirements for building models of network cooperation between defense industry organizations are formulated.