The invention relates to the field of intelligent transportation systems, in particular to an ultrasonic electronic bayonet monitoring apparatus which comprises a central processor, a detection system and a shooting system, wherein the central processor is respectively connected with the detection system and the shooting system; the shooting system comprises a controller C, a camera, a flashlight and a support C, wherein the camera and the flashlight are respectively connected with the controller C; the controller C is connected with the center processor; and the detection system is an ultrasonic detection system which comprises a frame A, a frame B, a plurality of isometric ultrasound probes arranged on the top beam of the frame A, a plurality of the isometric ultrasound probes arranged on the top beam of the frame B, a controller A and a controller B. The invention has the beneficial effect that real-time detection and real-time shooting of violations of regulation, such as overspeed, superelevation and superwide of vehicles can be realized by the ingenious utilization of the ultrasound probes on the premises of low cost and freedom from counter reconnaissance.