Improve the Lanchester Equation by taking into consideration of the status quo that combat capability requirement of armored combat vehicle is mainly determined by means of experience. And it brings forward a method system which is used to generate the combat capability requirement of armored combat vehicle. It also builds a feasible model about the generation of combat capability requirement. Moreover, it carries out some correlative study on how to apply the model to solve actual problems. The study is significant to scientific continuing development of armored combat vehicle’s model.