Vehicle identity information processing method and system based on block chain

The invention provides a block chain-based vehicle identity information processing method and system, and relates to the technical field of Internet of Vehicles, the block chain-based vehicle identity information processing method is applied to a first operation node, and comprises the steps of receiving vehicle identity information sent by a target vehicle node; performing identity authentication on the vehicle identity information by using a consensus mechanism corresponding to the target block chain, and if the identity authentication is successful, generating a digital certificate based on the vehicle identity information; sending the digital certificate to each second operation node of the target block chain, and receiving a verification result fed back by each second operation node; and under the condition that the verification result is passed, determining that the target vehicle node is added into the target block chain. By utilizing the public and transparent characteristics of the block chain, the b