Preventive Dentistry is one of the foundational courses of stomatology education.Traditional Preventive Dentistry adopts relatively single teaching mode which only combines theoretical lectures and laboratory teaching,and it is difficult to mobilize students'learning enthusiasm.The"Healthy China"strategy has put forward higher requirements for the comprehensive quality and training mode of preventive dentistry talents.In response to the construction of"new medical science",the department of preventive dentistry,Sun Yat-Sen University Guanghua School of Stomatology has carried out an in-depth exploration of the social practice teaching reform of Preventive Dentistry.Teaching practice has proved that this social practice teaching mode has greatly improved students'motivation to learn,and significantly enhanced students'ability to create science popularization and community service.The article comprehensively summarizes the experience and teaching achievements of the social practice teaching mode of Preventive Dentistry from four aspects:teaching philosophy,teaching content,teaching implementation path,and teaching evaluation system,in order to provide reference for relevant courses in other universities.