College students generally have negative emotions such as anxiety,fear and depression when encountering the COVID-19 situation.SCL-90 is used to investigate the mental state of college students under the COVID-19 and psychological intervention is used to help college students adjust their mentality and maintain a healthy mental state.The positive intervention of psychological methods has achieved significant results such as coping with psychological stress,comprehensive psychological counseling for groups and individuals targeting college students by means of online media.