Abstract: The results of a survey of students' addiction to mobile phone show that students are addicted to smart phone to some extent in withdrawal, obsessive-compulsion, neurotic, and connection, among which neurotic dependence is the highest.The elements of university students' addiction to smart phone are correlated, which are almost all positive influences.In withdrawal, female students' addiction is obviously higher than male students, while in obsessive-compulsive checking, the addiction of students of liberal arts are obviously higher than that of science students.