The invention provides an automobile intelligent management method and system based on a block chain. The method comprises the steps that state information of an automobile or a control instruction sent by a user is acquired; a target service needing to be accepted by the automobile is determined according to the state information or the control instruction, and the automobile information, the service request and the payment information are published into a block chain network; the vehicle information, the service request and the payment information are sent to the first server; information which is sent by the first server and distributes the second server to provide the target service for the automobile is recieved, wherein the first server sends the information that the automobile is anobject receiving the target service to the second server; after the automobile receives the target service provided by the second server, a target service block is read, paid bill data are obtained,the paid bill data comprise paid information of the vehicle-mounted terminal for bills through the blockchain network, and the bills are issued to the blockchain network by the second server. Latencytime is reduced.