In order to meet the needs of complex system performance analysis, a fuzzy comprehensive evaluation method based on ADC performance model is proposed by combining traditional system analysis, mathematical modeling and fuzzy mathematics, and integrating the advantages of different analytical tools. Firstly, the system is decomposed hierarchically to form an efficiency evaluation index system, then the evaluation set and membership function form of performance evaluation are determined, and finally the weight is aggregated layer by layer according to the basic steps of fuzzy comprehensive evaluation to obtain the overall performance evaluation vector of the system. The analysis and simulation of the combat effectiveness of typical optoelectronic countermeasure systems show that the proposed method is feasible.