气门座圈作为汽车发动机的重要组成部分，与发动机的使用寿命直接相关。气门座圈在服役过程中因耐磨性不足、易发生氧化等缺点限制了其使用寿命。在制备气门座圈时进行表面改性是解决上述问题的有效途径，但目前对气门座圈表面改性的研究缺乏系统的总结，基于此，本研究概述了气门座圈表面改性技术及其研究进展情况。首先，全面分析了气门座圈工作环境和常用材料的研究进展。其次，重点阐述了金属氮化物薄膜、激光熔覆涂层、热处理工艺表面改性技术对气门座圈耐磨性和耐高温氧化性的影响，探讨了不同表面改性技术与不同类别座圈材料性能优化之间的关联。最后，对气门座圈表面改性技术进行了总结和展望，提出了气门座圈表面改性工作未来的发展方向。

As a critical component in automotive engines, the valve seat ring directly correlates with the engine service life.However, limitations such as insufficient wear resistance and susceptibility to oxidation during operation restrict the durability of valve seat rings.Surface modification during the manufacturing process has emerged as an effective solution to address these challenges.Current research on surface modification techniques for valve seat rings lacks systematic summarization.To bridge this gap, an overview of surface modification technologies and their advancements in this field was conducted. Firstly, the working environment of valve seat rings and research progress in commonly used materials were comprehensively analyzed. Subsequently, it focused on the effects of surface modification techniques（including metal nitride films, laser cladding coatings, and heat treatment processes） on the wear resistance and high-temperature oxidation resistance of valve seat rings. It further explored the relationship between these techniques and the performance optimization of different categories of seat ring materials. Finally, it summarized current achievements and proposed future directions for surface modification of valve seat rings.