In order to improve the efficiency of the evaluation of information confrontation capability of long-range air combat, based on the rational construction of evaluation index system, put forward the rough set capability evaluation model. Use rough set theory to analyze test data, carry out reduction of index system, ensure index weighting, realize evaluation on information confrontation capability of long-range air combat, and evaluate and analyze the example. The evaluation results show that the method reduce the evaluation calculation, improve the evaluation efficiency, and make the evaluation more objectively and real, and has important reference significance for the evaluation of long-range air combat information confrontation capability.