This project mainly conducts research on medical health big data from three aspects. First, it establishes community doctor workstations through community service centers to collect residents' health information and analyzes residents' age, region, disease type and other characteristics through statistical analysis. Then the data is sorted by classification and a unified standard for data is formed to structure medical health data. The second aspect is to collect users' health data through wearable micro-medical equipment, generate health data images, give users risk warnings in advance, and form a unified chronic disease contract management standard. The third aspect is to connect with the HIS system of each primary hospital and format the medical records, test lists and medical images through a unified interface, realizing the interconnection and intercommunication of medical data in each hospital. The security and privacy of users' medical data will be protected thanks to user login management and controlled access rights.