Abstract: Objective To explore the relationship between sleep quality,occupational burnout,and emotional labor among orthopedic nurses. Methods From October to December 2022,321 orthopedic nurses of grade-A tertiary hospitals in Guangzhou City were selected as the research objects by convenient sampling method. The general information questionnaire,Pittsburgh sleep quality index（PSQI）,Maslach burnout inventory（MBI） and emotional labor questionnaire（ELQ） were used for questionnaire survey,and the data were analyzed. Results A total of 312 orthopedic nurses were collected. The job burnout score of them was （78.86±18.05）points,and the prevalence of job burnout was 60.5%. The sleep quality score was （8.47±3.52）points,and 60.9% of nurses had sleep quality problems. The emotional labor score was （50.45±12.36）points. The correlation analysis showed that emotional labor,sleep quality and burnout were positively related（all P<0.01）. The structural equation model analysis showed that the sleep quality of orthopedic nurses had a positive prediction effect on job burnout（the direct effect was 0.204）,and emotional labor played a partial mediation role between job burnout and sleep quality,and the mediation effect accounted for 54% of the total effect. Conclusions The sleep quality,emotional labor and job burnout of orthopedic nurses are closely related. The sleep quality can directly affect the job burnout, and can indirectly affect the job burnout of orthopedic nurses through emotional labor. Therefore,the orthopedic nursing managers can improve the sleep quality and job burnout of nurses by adjusting emotional labor,so that orthopedic nurses can have a healthy physical and mental commitment to the nursing work of orthopedic patients|and promote the rapid recovery of patients.

Key words: Nurses, Sleep quality, Emotional labor, Job burnout, Mediating effect