Abstract:Air material support is material foundation of the air force technical support, its effectiveness influence operational effectiveness of the weapons and equipments of air force directly. Utilizing the theory of SPA (Set Pair Analysis), which have the characteristic of ensuring same different and opposite of unsure system rational depict on certain specialty, establish the pairs of evaluation index of air material support effectiveness, and establish the index system of air material support effectiveness. Hereby, analyze and evaluate the air material support effectiveness. At last, validate the theory of SPA, and proved scientific basis of the project of air material support by equipment management decision maker constituted.