目的：分析皮肤病住院患者费用构成和主要影响因子，为有效控制医疗费用、减轻患者经济负担，控制疾病成本提供相应建议。方法：运用因子分析法对广东省某皮肤病专科医院2017~2019年皮肤病患者的住院费用提取公因子，分析费用的主要影响因素。结果：皮肤病住院患者平均住院费用为5827.20元，其中药费占31.24%，实验诊断费占23.23%，非手术治疗费占20.76%，一般医疗服务费占12.45%，影像学诊断费占5.68%，护理费占3.18%，病理诊断费占2.53%，临床项目诊断费占0.93%。医药服务因子、检查诊断因子是影响皮肤病患者住院费用的主要支配因子。结论：通过医疗服务结构调整，合理降低辅助用药、诊断费用，是有效控制皮肤病患者住院费用过快增长的重要抓手。

Objective：To explore the cost structure of inpatients with dermatosis，analyze the main influencing factors of hospitalization expenses，and provide reference basis for reducing inpatients’ financial burden and effectively controlling medical expenses. Methods：The factor analysis method was used to extract common factors for the hospitalization expenses of skin disease patients in acertaindermatology hospital in Guangdong Province from 2017 to 2019，and the main influencing factors of expenses were analyzed. Results：The average hospitalization expenses of patients with dermatosis were 5，827.20 yuan. In the composition of the hospitalizationexpenses，31.24% of the drug expenses，23.23% of the experimental diagnosis expenses，20.76% of the non-surgical treatment expenses，12.45% of the basicmedicalservice expenses，5.68%of imaging diagnosis expenses，3.18% of the nursing expenses，2.53% of the pathologic diagnosis expenses and the 0.93% of the clinical diagnosis expenses. The cost of drugs，the factors of medicalservice and diagnosis factor are the common factors which affect the cost of hospitalization in patients with dermatosis. Conclusion：To control the excessive increase of medical expenses effectively，we are supposed to focus on the adjustment of medical service structure，and reasonably reduce the cost of auxiliary drugs and diagnosis