Abstract: Objective To analyze the impact of crisis vulnerability,coping style and social support on psychological crisis of medical staff,explore the correlation between them,and put forward measures to promote the mental health of medical staff. Methods The medical staff of a second-level hospital in a county of Xinjiang Uygur Autonomous Region was selected as the research object from January to March 2022. The questionnaire investigation was conducted by the symptom checklist 90（SCL-90）,crisis vulnerability questionnaire,social support sating scale（SSRS） and trait coping style were used questionnaire（TCSQ）,and the data were analyzed. Results The score of SCL-90 of medical staff of a second-level hospital in a county of Xinjiang was （131.24±34.40）points,and the differences in score of SCL-90 were statistically significant among medical staff with different age,educational background,professional title and working age（all P<0.05）. The crisis vulnerability of medical staff was positively correlated with psychological crisis（r=0.565,P<0.01）,the social support was negatively correlated with psychological crisis（r=-0.374, P<0.01）,the positive coping was negatively correlated with psychological crisis（r=-0.356,P<0.01）,while negative coping was positively correlated with psychological crisis（r=0.535,P<0.01）. The positive coping had a significant moderating effect on crisis vulnerability and psychological crisis（P<0.01）,and the negative coping had a significant moderating effect on social support and psychological crisis（P<0.01）. Conclusions The medical staff of a second-level hospital in a county of Xinjiang have a high score of psychological risk,so more attention should be paid to their mental health status. Adequate social support can be provided to guide positive coping styles and reduce negative coping behaviors,thereby reducing the level of vulnerability to crisis and improving their mental health status as soon as possible.

Key words: Medical staff, Psychological crisis, Crisis vulnerability, Social support, Coping style, Regulating effect