CCM (Cloud Chain Medical Treatment) is an open information service platform developed based on blockchain technology. It securely consolidates and manages medical data produced by various devices, including smartphones, as well as data scattered across different healthcare providers. Medical consumers can set different read permissions for each piece of their personal information, giving them full ownership and control over their medical records. Healthcare providers can input treatment records of patients into CCM with the patients consent. Individuals, research institutions, or companies seeking access to someone else’s medical information can obtain the required medical resources after obtaining the owners consent.