In response to the real problem of vehicle speed identification,the student innovation team relied on OpenCV and python software and applied machine vision technology to independently design a vehicle speed detection system based on on-board video,realizing the speed identification of the ve-hicle in front of the on-board video.The experimental results show that the vehicle speed detection system can effectively and accurately detect the vehicle-mounted video,forming a more convenient and practical vehicle speed identification scheme.This innovative experiment effectively connects the disci-plines of engineering and law,fully and effectively integrate artificial intelligence with the practice of judicial authentication,and innovates the training model of judicial authentication talents under the in-tegration of new engineering and new liberal arts education reforms,and enables the practical applica-tion of judicial authentication.It is becoming more scientific,and substantively promoting judicial jus-tice and human rights protection.