Liquid-like polymer lubricating surfaces (LPLSs) are solid substrates with highly flexible polymer chains grafted via covalent bonds. This unique modification enables ultralow contact-angle hysteresis, repellency of various liquids and bulk ice, and stability. The distinctive wettability and universality of LPLSs have potential applications in liquid motion, biological detection, and environmental protection. In this review, we summarize the mechanisms, preparation, and applications of LPLSs. We discuss the wettability and lubrication mechanisms of liquid droplets on LPLSs. We then categorize LPLS fabrication into “grafted onto” and “grafted from” groups, depending on the type of polymer. We highlight representative applications with recent developments in anti-complex liquid, anti-icing, anti-biological adhesions, biosensing, and photocatalytic activity. Finally, we discuss future challenges and outlooks for LPLSs.

液状聚合物润滑表面（LPLS）是具有通过共价键接枝的高度柔性聚合物链的固体基质。这种独特的改性可实现超低接触角滞后、各种液体和块状冰的排斥性以及稳定性。LPLS独特的润湿性和通用性在液体运动、生物检测和环境保护方面具有潜在的应用前景。在这篇综述中，我们总结了 LPLS 的机制、制备和应用。我们讨论了 LPLS 上液滴的润湿性和润滑机制。然后，根据聚合物的类型，我们将 LPLS 制造分为“接枝到”和“接枝自”组。我们重点介绍抗复杂液体、防冰、抗生物粘连、生物传感、和光催化活性。最后，我们讨论了 LPLS 的未来挑战和前景。