The present invention detects a driver's biosignal and a vehicle's position signal, extracts frequency characteristics of the brain activity signal, gaze position, and gaze motion variation from the detected biosignal, and extracts the extracted signals into a regression model. It is applied to determine the driving intention, and transmits the determined driving intention and vehicle position information to the surrounding vehicles through wireless communication, and outputs the driving intention information received from the surrounding vehicles through the display device, between the vehicles using the biological signal A driver's driving intention information intercommunication system and a control method thereof. The driving intention information intercommunication system of the driver between the vehicles of the present invention includes a driver biosignal detection unit for detecting an electroencephalogram signal and a gaze signal of the driver, including an EEG detector and a gaze detector； Receives EEG signals and gaze signals from the driver's biosignal detection unit, detects EEG characteristic signals according to frequency bands including alpha waves in the EEG signals, and visually identifies the position of the gaze and the variability (variation degree) of the gaze in the gaze signal And an operation processor configured to detect the signals as EEG and apply the detected EEG feature signals and the gaze feature signals to a regression model of the learned AI, and output a driving intention signal of the own vehicle. The present invention further includes a GPS receiver mounted on the vehicle, and detects a vehicle vehicle location information signal including the location coordinates of the vehicle, and includes a driving intention signal and a vehicle vehicle location information signal of the vehicle. Wireless transmission to other vehicles. In addition, the vehicle receives a driving intention signal of another vehicle and another vehicle posit
