Shanghai medical tourism products &; Promotion platform (SHMTPPP) adopts TPA mode. TPA is a new model of medical tourism service at present, which plays a core role in international service trade. Its main task is to analyze and understand the needs of customers and provide guidance and training to medical service providers in line with international standards. And complete pre-sales (product development, network promotion, brand, marketing, medical service consultation, reservation software, telemedicine technical support, database, airport reception, translation, catering accommodation, sightseeing and so on. ) and after-sales (quality monitoring, satisfaction survey, foreign exchange settlement, service trade statistics, legal disputes, etc. ) The related work in the workflow of medical tourism, and the medical service of the content for sale is completed by the hospital. Overseas medical tourism companies are all in TPA mode, and all patients go overseas for medical treatment through TPA.