Carbon fiber reinforced plastic/aluminum alloy (CFRP/Al) hybrid structures play a critical role in modern aircraft. The study systematically reviews the connection methods, physical and electrochemical properties, the advantages and limitations of CFRP/Al structures. Comparative analysis is conducted on the degradation mechanisms under mechanical loading, environmental exposure, and coupled load-environment conditions. Meanwhile, practical challenges encountered during service time are identified and categorized, and the future development directions and key research priorities are outlined. This work establishes a foundational framework for advancing the widespread application of CFRP/Al structures in aviation. Additionally, it offers valuable guidance for extending the use of these hybrid structures to automotive, power transmission, and other industrial sectors, thereby contributing to the sustainable progress of lightweight material technologies.
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