With a focus on meeting the quantitative analysis requirements for situational awareness and operational decision-making in maritime information warfare,a method utilizing improved fuzzy-AHP approach is proposed for assessing the impact of complex electromagnetic environments on naval equipment.First,the paper analyzes the “four domains” characteristics of the electromagnetic environment in naval battlefields.Based on the conclusions drawn from this analysis,two types of evaluation indicator systems are established:a general and a specific evaluation indicator system for evaluating the impact of electromagnetic spectra on naval equipment.To enhance the traditional fuzzy-AHP method,the bat algorithm is employed to effectively mitigate errors and subjectivity in the process of determining indicator weights.The applicability of the proposed method is demonstrated through its application to the assessment problem of equipments response to complex electromagnetic environments.Additionally,a naval exercise operation is designed,evaluated,and analyzed to validate the effectiveness of the model.The findings of this study provide valuable recommendations and requirements for command decision-making in maritime operations.