Based on the research results of this experiment, the feasibility of using brain consciousness to control external devices is verified, and the soft and hard development is promoted from human-computer interaction environment to brain-computer interaction environment. The general idea can be summarized as identifying the user's operation intention from the collected EEG signals, extracting the characteristic parameters that can reflect the user's subjective action consciousness and converting them into instructions to control peripheral devices through some algorithm, and controlling the smart car.