Automobile dangerous driving state output system

The invention relates to an automobile dangerous driving state output system, which is characterized by comprising a driver state monitoring unit (1), a state information display unit (2) and a state information display unit (3), the state information display unit (2) is used for displaying the state of the driver so as to prompt a rear vehicle, and when the state of the driver is normal, the state information display unit (2) displays normal information; when the state of the driver is abnormal, the state information display unit (2) displays abnormal information so as to prompt a rear vehicle to pay attention or keep a distance or give an overtaking prompt. The dangerous driving state output system of the automobile can easily obtain the driver state information of the front automobile and the distance between the overtaking front automobile and the front automobile or abrupt change speed information, is used for determining whether overtaking is needed at the moment, and is convenient to use. 本发明涉及一种汽车危险行驶