The application relates to the technical field of vehicle navigation, and provides a
chassis communication protocol configuration method and device, a vehicle navigation terminal and a storage medium. The vehicle navigation terminal acquires the configuration state of the
chassis communication protocol of a rear-mounted
navigation system, and acquires
chassis data messages and target communication protocol identification when the configuration state is not configured. Then, the target communication protocol identification is matched with a plurality of chassis communication protocol information. When there is no target chassis communication protocol information matched with the target communication protocol identification, the chassis
data messages are sent to an upper computer, so that the upper computer obtains target chassis communication protocol information according to the chassis
data messages and sends the target chassis communication protocol information to the vehicle navigation terminal. The vehicle navigation terminal stores the target chassis communication protocol information and performs
integrity check. When the target chassis communication protocol information passes the
integrity check, the configuration state is modified to configured. Therefore, the rear-mounted
navigation system does not need to be developed for each chassis communication protocol, and the universality of the rear-mounted
navigation system is improved.