Objective To analyze the prevalence and risk factors of 3 types of skin injuries in the elderly through multicenter cross-sectional survey,so as to provide bases for formulating prevention strategies for skin injuries in the elderly. Methods On March 31,2021,1 067 nurses from 50 hospitals in 16 provinces,2 autonomous regions and 2 municipalities included inpatients over 60 years old and inspected their skin from head to toes to identify pressure injury（PI）,incontinence-associated dermatitis（IAD） and skin tear（ST）,and meanwhile collected demographic,healthcare condition and PI risk assessment data. Statistical software was used for descriptive analysis,Pearson correlation analysis and logistic regression analysis. Results Totally,14 470 cases were obtained. The average age was（73.35±8.90） years old. The total prevalence of skin injuries was 6.69%,and the prevalence of PI,IAD and ST was 3.91%,1.89% and 0.89%,respectively. Logistic regression analysis showed that the risk of PI,inability of self-care,hypoproteinemia and anemia,comorbidity over 2 chronic diseases and ≥70 years old were the independent risk factors of PI in the elderly. The risk of PI,inability of self-care,hypoproteinemia,comorbidity over 2 chronic diseases,length of hospital stay≥8 days and the age of over 80 years were the independent risk factors of IAD in the elderly. The risk of PI and hypoproteinemia were independent risk factors of ST in the elderly. Conclusion Skin injuries of the hospitalized elderly are the result of multiple factors,while PI and IAD are the most typical ones,and the risk factors of different types of skin injuries are also different. When formulating prevention strategies,we should not only pay attention to the independent role of risk factors,but also consider the combined role of risk factors,take comprehensive preventive measures to improve the prevention effect.