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Abstract:Based on the integrated design in the field of airborne radio communication, navigation and surveillance (CNS), a system design method based on aspect oriented idea is proposed to solve the problems of high complexity, poor maintainability and great airworthiness after system integration. Based on the aspect oriented idea in the field of software design, this method first analyzes the requirements of airborne CNS system from the three dimensions of system domain model, business model and separation of concerns, and then designs airborne CNS system from the four processes of system architecture design, component design, component preparation and operation deployment,Finally, a real case is introduced to realize the process of requirement change through adding functional modules and modifying the system blueprint.Through the comprehensive evaluation of the aspect oriented integrated CNS system from the two aspects of maintainability and airworthiness compliance, it can be concluded that the method proposed in this paper can improve the maintainability of the system, contribute to the verification of product airworthiness compliance, and lay a foundation for the airworthiness research of RF integrated CNS system.