Abstract: Objective To discuss the mediating role of psychological capital between compassion fatigue,job burnout and secondary trauma of tumor surgery nurses. Methods From October 2020 to December 2022,176 tumor surgical nurses of five comprehensive hospitals in Wuhan City were selected by convenient sampling method as the subjects of investigation,and were investigated and analyzed with the general situation scale,psychological capital scale,compassion fatigue scale,job burnout scale and secondary trauma scale. Results The score of psychological capital of tumor surgery nurses was （82.31±10.38）points,the score of job burnout was （60.86±7.82）points,the score of compassion fatigue was （86.62±9.37）points,and the score of secondary trauma was （52.36±8.38）points. There were statistically significant differences in the scores of secondary trauma among tumor surgery nurses with different age,working years,professional title,monthly income and monthly night shift frequency（all P<0.05）. The psychological capital of tumor surgery nurses was negatively correlated with sympathy fatigue,job burnout and secondary trauma（all P<0.01）,the compassion fatigue was positively correlated with job burnout and secondary trauma（all P<0.01）,and the job burnout was positively correlated with secondary trauma（P<0.01）. The psychological capital played a part of intermediary role between compassion fatigue and secondary trauma of tumor surgical nurses,the intermediary effect was 0.240,accounting for 45.63% of the total effect. The psychological capital played a partial intermediary role between job burnout and secondary trauma of tumor surgery nurses,with the intermediary effect of 0.232,accounting for 39.59% of the total effect. Conclusion The compassion fatigue and job burnout of tumor surgery nurses can indirectly affect secondary trauma through the mediation of psychological capital,and improving their psychological capital is beneficial to reduce the level of secondary trauma.

Key words: Tumor surgery, Nurse, Psychological capital, Compassion fatigue, Job burnout, Secondary trauma