To provide a 'vehicle emergency informing system' for automatically judging the state of an emergency situation, and operating emergency information to a police station and a fire station or the like even when a rider can not operate the emergency report at the time of the emergency situation such as the collision of vehicles.

Collision sensors 1, 2, and 3, its own vehicle position detecting device 20, control unit 10 to which the both data are inputted, and emergency information transmitting means 15 to an outside are mounted on a vehicle. Then, when collision is detected by the collision sensors 1, 2, and 3, the collision state is judged by the control unit 10, the judged result of the collision state is combined with the information of its own vehicle position at need to be transmitted to the outside by the emergency information transmitting means 15.