Digital transformation in examination is an important part in digital transformation of higher education. It has been tried in many universities in China. At present, the main difficulty for large-scale promotion is the online input for different question types. In this paper an online test system which is developed by Shandong University and IFLYTEK is described. The input problem is effectively resolved with the help of high-speed photographic apparatus. The organization and implementation of the online final examination for college physics I in Shandong University is described in detail. The results of the examination are also discussed. It is predicted that this mode will be widely adopted in the future.