Research on generic technology of complex equipment is of great significance to the promotion of national strength and national security. Such problems as insufficient innovators and supply failure in the R&D process are major obstacles to upgrade Chinas generic technology, to which government intervention and cooperative R&D pattern can hopefully be a solution. To explore the role of government subsidies in the development of generic technology of complex equipment, this paper, based on the evolutionary game model of the generic technology of cooperative R&D under government subsidies in complex equipment industry, analyzed the stability of dynamic evolution, conducted numerical simulation with MATLAB, verified the theoretical analysis of the model, and reached the conclusion that government subsidies can promote cooperative R&D. Finally, taking aerospace industry as an example, this paper proved the effectiveness of the model and validity of the conclusion.