In order to provide a scientific basis for the rational allocation of development and construction funds required in further system optimization to improve system design, an airborne C I system performance assessment index system is proposed according to the function, characteristics and the applied research of airborne CI system, in which all factors and additional indicators expertise on airborne CI system performance are taken into consideration comprehensively, and the airborne CI system efficiency is quantified by combining the subjective and the objective to enhance the comprehensive ability in evaluation. The use of fuzzy comprehensive evaluation method in evaluating the static system performance will combine the static and dynamic assessments to obtain a total evaluation of the system performance. An example analysis is done, which shows that this method is feasible and effective.