Modern warfare is a confrontation between weapon systems, which objectively, scientifically and comprehensively measures the performance of weapons, or pays great attention on evaluating comprehensive performance of weapon systems at the beginning of designing and requirement phase. It is very important to reduce the risk of developing new weapons and technology and improves economic efficiency. This essay focuses on study of future newly evented antiaircraft missile weapon's system contribution rate to antiaircraft missile weapon system by analyzing on establishing weapon system contribution rate evaluating frame. It depicts weapon system contribution rate from five aspects including function and performance, technological regimes, structure of system, efficiency analysis and cycle of economic benefit, which theoretically supports on evaluating the performance of future newly evented antiaircraft missile weapon.