Data processing method and device, vehicle-mounted terminal and automobile

The embodiment of the invention provides a data processing method and device, a vehicle-mounted terminal and an automobile. The method comprises the steps: under the condition that a target event is monitored in the running process of an automobile, receiving a full-amount data message sent by a vehicle bus controller and storing it in the vehicle-mounted terminal, wherein the target event is at least one of a fault event and an alarm event; and uploading the total data message to a vehicle remote server. According to the vehicle-mounted terminal provided by the embodiment of the invention, the functions of storing and recording the total data message are integrated, the matching and carrying processes of data recording equipment are omitted, and the related software and hardware cost is saved. According to the method, the fault and alarm full-amount message data recording function of the whole life cycle from vehicle design and development to after-sale is also realized; therefore, a problem of data acquisit