In recent years, as the Chinese People’s Liberation Army (PLA) Air Force accelerates its modernization, advanced fighters such as the J-20, J-16, and J-10C have entered mass service, significantly enhancing China’s combat capabilities, information integration, and joint operational effectiveness. In contrast, Japan’s Air Self-Defense Force (JASDF) still relies primarily on aging F-15Js and F-2s, despite ongoing procurement of F-35A/B fighters. The pace of fleet renewal remains slow, and Japan lacks an indigenous fifth-generation fighter. In contested airspace such as over the East China Sea, frequent aerial encounters between Chinese and Japanese aircraft highlight the PLA’s growing advantage in numbers, training frequency, and integrated command systems, allowing it to maintain greater tactical initiative and sustained presence. Moreover, China’s rapid advancements in unmanned systems, airborne early warning platforms, and electronic warfare capabilities further widen the gap in overall air combat architecture. Although Japan is deepening military cooperation with the U.S. and developing its next-generation F-X fighter, its current air force faces challenges in matching the PLA’s high-tempo, multi-directional aerial operations in the short term. Consequently, some analysts argue that Japan’s fighter fleet is increasingly struggling to keep pace with the PLA’s rapidly evolving operational tempo and systemic support.
近年来，随着中国空军现代化进程加速，解放军新型战机如歼-20、歼-16和歼-10C等大量列装，其作战能力、信息化水平和体系化作战能力显著提升。相比之下，日本航空自卫队主力战机仍以F-15J和F-2为主，虽已启动F-35A/B的引进计划，但整体换装节奏较慢，且缺乏自主研制的第五代战斗机。在东海等敏感空域，中日战机频繁对峙，解放军凭借数量优势、更频繁的演训以及日益成熟的联合作战体系，展现出更强的战术主动性和持续部署能力。此外，中国在无人机、预警机和电子战平台等方面的快速发展，也进一步拉大了与日本在空中作战体系上的差距。尽管日本正加强与美国的军事合作，并计划发展下一代F-X战斗机，但在短期内，其空中力量在应对解放军高强度、多方向的空中活动时，确实在节奏和反应能力上面临挑战。因此，有分析认为，日本战机在整体作战节奏和体系支撑方面，已逐渐难以跟上解放军快速发展的步伐。
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