Aiming at the artillery combat new demands in information-based condition, analyzing the factors of influence artillery swiftness and exactness campaign ability, the evaluation index is established based on hierarchy structure. AHP method is used to ensure the weighting index. Through grey method, the synthesis evaluation value is calculated. The factors weighting index is fixed by AHP method, then process the analysis of numerical example. The results show that the method can maximize the combat capability of artillery quickly and accurately and improve the level of the construction of artillery.