Vehicle-mounted system upgrading method and vehicle-mounted terminal

The embodiment of the invention discloses a vehicle-mounted system upgrading method and a vehicle-mounted terminal, the vehicle-mounted terminal comprises a processor and a memory, and the memory is used for storing a computer program; the processor is connected with the memory and is configured to execute the following steps based on a computer program: obtaining a target upgrade package; determining a target auxiliary terminal corresponding to the target upgrade package according to the object identifier in the target upgrade package; and sending the target upgrade package to the determined target secondary terminal to indicate the target secondary terminal to upgrade according to the target upgrade package. According to the method, the whole vehicle-mounted system can be upgraded only by operating the vehicle-mounted terminal serving as the main terminal, and compared with the mode that each auxiliary terminal obtains the upgrade package for upgrading in the related technology, on one hand, the operation c