海洋生物污损引起的一系列经济损失和安全问题，是海洋开发过程中必须面临的重要问题之一，因此开发新型高效的防污技术具有重要意义。随着光催化抗污技术的发展，其在海洋防污的应用受到了广大研究者的关注。卤氧化铋（BiOX，X=Cl、Br、I）薄膜作为一种新型半导体薄膜，由于具有优异光催化性能、较高的机械强度和易于回收等优点，而成为应用于光催化防污领域中新的研究热点。综述了BiOX半导体薄膜的制备方法及其应用领域的最新进展。首先，在海洋污损与现存防污技术的研究背景下，概述了光催化技术应用于海洋防污的潜力。其次，综述了国内外当前BiOX薄膜制备技术及其应用领域，并介绍了各种方法的优缺点。之后总结了BiOX半导体膜在海洋防污领域的最新应用研究，其中特别强调了海洋环境中膜材料应用的必要性。最后，展望了BiOX半导体薄在海洋防污领域的发展前景，概述了可能产生突破性研究成果的发展方向，为进一步将BiOX薄膜应用于海洋防污领域打开了新的视角。

A series of economic losses and safety problems caused by marine biofouling are the important issues faced in the marine development. Therefore, the development of new and efficient anti-fouling technology is of great significance. With the development of photocatalytic antifouling technology, its application in marine antifouling has attracted the attention of researchers. As a new type of semiconductor film, bismuth oxyhalide (BiOX, X=Cl,Br,I) film has become a new research hotspot in the field of photocatalytic antifouling due to excellent photocatalytic performance, high mechanical strength and easy recycling. The work summarized BiOX film preparation technology and the recent advances in application. Firstly, the potential application of photocatalytic technology in Marine pollution prevention was summarized under the background of marine biofouling and existing anti-fouling technology. Secondly, BiOX thin film preparation technology at home and abroad and corresponding application fields were summarized, and the advantages and disadvantages of various methods were introduced. Later, the latest application research of BiOX semiconductor film in marine anti-fouling field was concluded, in which the necessity of film application in marine environment was highlighted. Finally, the perspective on the future development of BiOX semiconductor thin films in marine anti-fouling field was expected and the possible direction to yield breakthrough was outlined to open a new perspective for further application of BiOX thin films in marine anti-fouling field.