Block chain-based diagnosis and treatment information processing method and device

The invention provides a diagnosis and treatment information processing method and device based on a block chain. The method is applied to a block chain node, and the method comprises the steps: receiving an uplink request which is sent by a diagnosis and treatment information provider and carries at least one piece of diagnosis and treatment information; storing the at least one piece of diagnosis and treatment information in a block of a block chain network, wherein each piece of diagnosis and treatment information comprises identity information of one patient; receiving a use request which is sent by a diagnosis and treatment information user and carries the identity information of the target patient; and controlling the diagnosis and treatment information user to use the diagnosis and treatment information of the target patient according to the identity information of the target patient. According to the scheme, leakage or tampering of the diagnosis and treatment information data of the patient can be avo