In order to solve the influence of Doppler effect on the speed and accuracy of spectrum detection in the Internet of vehicles, the spectrum sensing algorithm in the case of high-speed vehicle movement is studied. Firstly, the cognitive radio technology and the Internet of vehicles technology are introduced to construct the cognitive radio enabled vehicular ad-hoc networks, and a spectrum sensing algorithm is proposed to solve the problem of low spectrum utilization.The experimental results show that the algorithm can eliminate the Doppler shift effect, improve the performance of spectrum detection, and solve the problem of signal distortion when the vehicle is moving at high speed.