In recent years, due to the advancement of technology, the combination of education and technology has been promoted, but it has also begun to attach importance to "teach students in accordance with their aptitude". Therefore, using big data, we can find the relationship between students and mathematics performance from huge empirical data, and analyze college students use iClass (learn website) the relationship between the situation of the website, academic performance, and student background factors. Analyze gender, curriculum activities, colleges, and admission respectively, and the results are supplied for teachers' reference.