Abstract: This paper interprets the 2025 edition of the national health industry standard WS/T 512, "Regulation for cleaning and disinfection management of environmental surface in healthcare". The promulgation of the 2016 edition marked the entry of healthcare environmental hygiene (HEH) in China into a phase of standardized and regulated management. The first comprehensive revision of the WS/T 512 standard after eight years of implementation not only summarizes past practical experience but also heralds new requirements for healthcare environmental hygiene. This paper discusses the rbackground for revision of the standard, the solicitation of suggestions and the revised contents and interpretation. It also analyzes the revisions and highlights of the 2025 edition in the context of domestic and international research progress in environmental infection control, aiming to assist healthcare institutions in better understanding and implementing the standard, thereby improving the quality and efficiency of HEH in China.