The present application relates to a system and method for sharing data on a medical cloud platform based on third-party business. The system includes: a terminal device and a cloud platform. The cloud platform receives a massive quantity of vital-sign data that are sent by the terminal device, analyzes and processes the massive quantity of vital-sign data by using the deep-learning framework of distributed parallel computation, screens abnormal data, and sends an abnormal-event warning to the user, to prompt the medical care personnel to quickly intervene. The terminal device may send an instruction to the cloud platform, including a user-self-defined-term setting instruction, a real-time-data service instruction, a data invoking instruction, a medical-document service instruction, a consultation-service instruction, a medical-cooperation-information issuing instruction, a data analyzing and counting instruction, a patient-state evaluating instruction, a data-analysis-report managing instruction, and a medical-tool-library inquiring instruction, to obtain the support from various third-party-business services.