Abstract: Objective To investigate the impact of workplace communication stress and psychological capital on job burnout of surgery room nurses,provide Objective evidence for improving the job burnout of surgery room nurses. Methods From October to December 2023,a total of 182 surgery room nurses from six tertiary general hospitals in Urumqi were randomly selected as the research subjects. The workplace communication stress,psychological capital and job burnout scales were used to assess the scores of workplace communication stress,psychological capital and job burnout. Pearson correlation was used to analyze the correlation between workplace communication stress,psychological capital and job burnout. The mediation effect model was used to analyze the strength of the mediating effect of psychological capital on workplace communication stress and job burnout. Results The scores of workplace communication stress,psychological capital and job burnout of surgery room nurses were （22.48±4.86）,（90.27±15.76） and（62.36±13.58）points,respectively. There were statistically significant differences in the scores of workplace communication stress,psychological capital and job burnout among surgery room nurses with different ages years of work,professional title,marital status,monthly performance income,average weekly working hours and average monthly night shifts（all P<0.05）.Pearson correlation analysis showed that the job burnout was positively correlated with workplace communication stress（r=0.627,P<0.01）,while workplace communication stress and job burnout were negatively correlated with psychological capital（r=-0.596,-0.695,both P<0.01）. The mediation effect model showed that the psychological capital of surgery room nurses had a high mediating effect between workplace communication stress and job burnout,with the mediating effect of 0.191,accounting for 39.14% of total effect. Conclusions The psychological capital of operating room nurses in six tertiary general hospitals in Urumqi has a high mediating effect between workplace communication stress and occupational burnout. Improving their psychological capital is conducive to reducing their workplace communication stress level and thus reducing their occupational burnout level. The hospital nursing managers should pay attention to the cultivation and development of nurses' psychological capital.

Key words: Surgery room nurses, Workplace communication stress, Psychological capital, Job burnout, Mediating effect