The main statistical indicator for the analysis of the results was the total score. The scores of 20 questions were added up to the crude score, and the crude score was multiplied by 1.25 and rounded to the nearest whole number to obtain the standard score. The normal upper limit of the total crude score was 41, and the standard total score was 53. The cut-off value for depression rating is 50, the higher the score, the more pronounced the depressive tendency. Depression severity = cumulative score of each item/80 Results: 0.5 or less is no depression; 0.5-0.59 is mild to mild depression; 0.6-0.69 is moderate to severe; 0.7 or more is severe depression. For reference only. Note: According to the Chinese normative results, the normal upper limit of the total crude score of depression rating is 41, and the standard score is 53. A standard score lower than 53 indicates a normal psychological condition, and a score higher than 53 indicates depressive symptoms, and the higher the score, the more serious the depressive symptoms are, and the need for psychological consultation or even medication under the guidance of a doctor. This scale can not only help to diagnose the presence of depressive symptoms, but also determine the severity of depression. Therefore, on the one hand, it can be used as a diagnostic tool, and on the other hand, it can be used to observe changes in depression during the treatment process and as an indicator of the effectiveness of the treatment. However, this scale cannot be used to determine the nature of depression, so it is not used to classify the cause of depression and disease diagnosis. Therefore, if depression is detected, you should go to medical psychology department for detailed examination, diagnosis and treatment in time.