Abstract: Objective To explore the effect of network group psychological intervention and mental health education on the anxiety,depression and insomnia severity of medical staff and the effect of 3-month follow-up. Methods From May to November 2022,a total of 109 medical staff who participated in medical treatment work in a hospital in Tianjin were selected and randomly divided into comprehensive intervention group（network group psychological intervention combined with mental health education,n=53） and mental health education group（n=56） by a randomized controlled experiment design. Self-rating anxiety scale（SAS）,self-rating depression scale（SDS） and insomnia severity index（ISI） were used to evaluated before,after the intervention and at 3-month follow-up. Results There were no statistically significant differences in gender,age,marital status,education background,occupation type and time of participating in medical treatment work between the two groups of medical staff（all P>0.05）. Before the intervention,the scores of SAS[（41.46±10.38）points],SDS[（46.34±14.50）points] and ISI[（7.62±5.12）points] in the comprehensive intervention group were not statistically significantly different from those in the mental health education group [（40.47±9.59）,（45.29±11.60）,and （7.50±4.72）points]（all P>0.05）. After the intervention,the scores of SAS[（31.44±5.38）points] and SDS[（33.96±7.55）points] in the comprehensive intervention group were significantly lower than those in the mental health education group[（35.47±7.88）,（39.44±11.88）points]（both P<0.05）. At 3-month follow-up,the scores of SAS[（35.97±8.37）points] and SDS[（38.56±10.58）points] in the comprehensive intervention group were still significantly lower than those in the mental health education group[（39.91±11.89） and （43.50±14.29）points]（both P<0.05）. The scores of anxiety and depression after the intervention were significantly lower than before the intervention in the two groups（both P<0.05）,and the scores of anxiety and depression in the comprehensive intervention group at 3 months follow-up were still significantly lower than before the intervention（both P<0.05）. The score of ISI among medical staff in the comprehensive intervention group after the intervention was （5.70±3.70）points,significantly lower than before the intervention（P<0.05）,and significantly lower than the score of the mental health education group[（7.21±3.94）points]（P<0.05）. However,the ISI score at the 3 month follow-up was （6.19±3.86）points,and there was no statistically significant difference compared with the score of before the intervention[（7.62±5.12）points]（P>0.05）. The ISI scores of medical staff in the mental health education group showed no statistically significant difference after the intervention and at 3 month follow-up compared to before the intervention（both P>0.05）. Conclusion Network group psychological intervention combined with mental health education can effectively improve the anxiety,depression and insomnia of medical staff,and the effect is better than simple mental health education alone.

Key words: Medical staff, Anxiety, Depression, Insomnia, Network group psychological intervention, Mental health education