综述了光热驱动型共价再键合自修复涂层的研究现状、性能缺陷及未来发展方向。首先，从成键机理的角度，探讨了不同共价键修复的设计思路和应用特点，详细解释了环加成反应、二硫/二硒 /二碲键交换反应和 Michael加成反应的原理，并列举了相关研究案例。通过文献调研发现，该类涂层在修复较大分子、适用范围、耐久性、自修复效果及成本等方面存在不足。基于此，提出了未来发展方向应包括多功能性、智能性、生物可降解和大规模应用等方面。总体而言，热驱动型共价再键合自修复为涂层领域开辟了新的发展路径，展现了广阔的应用前景，将显著提升涂层的功能性和可靠性。

This paper reviewed the research status，performance deficiencies and future development directions of photothermal-driven covalent re-bonding self-healing coatings.Firstly，from the perspective of bonding mechanisms，the design ideas and application characteristics of different covalent bond repair strategies were discussed，the principles behind cycloaddition reactions，disulfide/diselenide/ditelluride bond exchange reactions，and Michael addition reactions were explained in detail，and related research cases were listed. Literature research revealed that this type of coating is deficient in repairing larger molecules，application scope，durability，self-healing efficacy and cost. Based on this，it was proposed that future development directions should include multifunctionality，intelligence，biodegradability and large-scale applications. Overall，photothermal-driven covalent re-bonding self-healing coating would open up new developmental pathways for the coating field show broad application prospects and significantly enhancing the functionality and reliability of coatings.