To enhance the efficiency of the missile weapon system, this author studies on efficiency of the missile weapon system based on extension analysis and transformation. By building matter-element model of missile weapon system effectiveness, it deals with efficiency structure, composing and capability of missile weapon systems with divergent analysis theory, correlated analysis theory and conjugate analysis theory. It analyses and researches the missile weapon system effectiveness with contained analysis theory and conjugate transformation theory. The result proves that the method can make analysis signifying and formalization and make arrangement of analysis clearer, supplying a new way for seeking the approach of enhancing missile weapon system effectiveness.