无线网络在民机上的应用是一个全新的应用模式,在提高飞机维护效率,降低飞机维护成本的同时,也对机载网络安全性设计提出了更严格的要求。通过对机载无线网络架构的研究,本文分析了可能由地面网络技术引入的网络安全威胁,并针对这些威胁探讨了相对应的安全防护策略。 The application of wireless network on civil aircraft is a new application model, which raises more stringent requirements on airborne network security design while improving aircraft maintenance efficiency and aircraft maintenance costs. Through the research of airborne wireless network architecture, this paper analyzes the network security threats that may be introduced by the ground network technology, and discusses the corresponding security protection strategies for these threats.