The invention discloses an automobile gateway system for inverse resolution of communication protocols. The gateway system is installed between a first network node and a second network node of an automobile control network, and comprises a first transceiver, a second transceiver, a third transceiver, a micro controller unit (MCU), a first memory, a second memory, a third memory and a fourth memory. Through the technical scheme, key control and state signals in the automobile control network can be effectively resolved, and accurate control of each key system is realized; and through the system, accuracy of protocol resolution is enhanced, the resolution efficiency is improved, and research resources are saved.