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Personal health management system can help people get a lot of valuable health information. In order to design a safe and efficient personal health management system, the paper designs and implements a database by giving full consideration to the actual needs of the users .The paper first analyses the demand of the system database and then devises the structures of concept and gets the entity relation diagram(E-R).Through the conversion of logical structure and according to the requirements of the 3 model to form a data relationship table. At the same time, in the design process, through the sacrifice of a certain storage space of the counter paradigm operation, in exchange for a more rapid query speed. Finally, a personal health information database is designed and implemented. The database can meet the actual development needs of personal health management system, and ensure the system query efficiency. Allowing users to more convenient and efficient use of the system to the management of health data and get more valuable health information.