Objective:To investigate the application of PDCA cycle management combined with "three-step" bedside teaching in respiratory nursing teaching.Methods:A total of 80 nursing students who studies in Department of Respiratory Medicine, Beijing Chaoyang Hospital Affiliated to Capital Medical University, were included as subjects, and they were divided into control group and observation group using a simple random number table, with 40 students in each group. The students in the control group received traditional teaching, while those in the observation group received PDCA cycle management combined with "three-step" bedside teaching. The two groups were compared in terms of the scores of theoretical knowledge, operation skills, and physical examination, comprehensive clinical nursing ability, and degree of satisfaction with teaching. SPSS 22.0 was used to perform the chi-square test and t-test. Results:The observation group had significantly higher scores of theoretical knowledge, operation skills, and physical examination than the control group ( P<0.05). Compared with the control group, the observation group had significantly higher scores of nursing consultation, physical examination, diagnosis, nursing measures, health consultation, humanistic care, organizational effectiveness, and overall evaluation ( P<0.05). The observation group had a significantly higher degree of satisfaction with teaching than the control group ( P<0.05). Conclusion:PDCA cycle management combined with "three-step" bedside teaching in respiratory nursing teaching can improve the assessment scores of theoretical knowledge, operation skills, and physical examination among nursing students, enhance their comprehensive clinical nursing abilities, and increase the degree of satisfaction.