The invention provides a safety protection method and device for an intelligent networked automobile, and the method comprises the steps: detecting a
vehicle control abnormal instruction in a communication process between a target vehicle and a cloud end based on a
vehicle control behavior characterization model and an abnormal behavior classification learning model; and based on the malicious
traffic identification model, identifying hidden malignant traffic in the process of communication between the target vehicle and the cloud, through a deep
reinforcement learning confrontation defense mode, a
decision control model is trained according to a
vehicle control abnormal instruction and hidden malignant flow, and the
decision control model is used for carrying out safety protection on the
intelligent network connection vehicle. Therefore, high-precision and high-reliability detection of attacks such as vehicle control instruction tampering attacks and strongly hidden malicious traffic under the
intelligent network connection vehicle-cloud cooperation scene is realized, the
attack concealment and
attack efficiency are effectively improved, the robustness and generalization of the model are enhanced, and the method is suitable for the
intelligent network connection vehicle-cloud cooperation scene. And the communication safety, the data safety and the
driving safety of the intelligent networked automobile ecological
system are improved.