Peri-implant disease is the most common biological complication of implant restoration.Risk assessment of peri-implant disease can effectively assist clinicians in identifying and intervening in possible risk factors and developing a reasonable supportive pe-ri-implant treatment plan.By reviewing the relevant literature on peri-implant disease risk assessment,this paper summarizes the risk factors of peri-implant disease,and briefly introduces three peri-implant disease risk assessment tools,which provides basis for the ap-plication of risk assessment in clinical diagnosis and treatment of peri-implant disease.