Coronavirus disease 2019 epidemic is a serious and infectious public health event that causes physical damage and may also have an impact on mental health. West China Hospital of Sichuan University combines the internet hospital platform with the traditional telephone model, establishes a new coronavirus disease 2019 intervention integration platform, and builds a new “four-in-one” medical service system, which contains epidemic consultation, psychological consultation, self-evaluation and home prevention and control. It has established a way for the public to communicate with professional, reduced the spread of coronavirus disease 2019 in space, and effectively carried out psychological decompression and comfort work, disseminated the knowledge of fighting coronavirus disease 2019, and provided medical advice. This article mainly introduces the out-of-hospital psychological intervention model of West China Hospital of Sichuan University during the coronavirus disease 2019 epidemic, and aims to provide a reference for exploring the psychological intervention methods for major public health emergencies.