The non-stationary feature extraction technique and intelligent diagnosis method are reviewed comprehens-ively in the paper. Additionally, the problems consisting in automata of naval gun fault diagnosis are summarized, and the application of non-stationary feature extraction and intelligent diagnosis method in automata fault diagnosis is introduced. Fi-nally, the questions in the research of automata fault diagnosis are expatiated detailedly, and the future development of auto-mata fault diagnosis is prospected.%回顾对目前常用的非平稳特征提取方法与智能诊断技术，并总结舰炮自动机故障诊断需解决的难题，介绍非平稳特征提取方法与智能诊断技术在舰炮自动机故障诊断中的应用现状，详细阐述舰炮自动机故障诊断研究中存在的问题及对发展趋势的展望。
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