The purpose of this research is to investigate the prevalence of internet addiction and positive psychological health among Chinese college students and to explore the relationship of positive psychological health and internet addiction. A total number of 811 university students (the mean age: 19.70 years) who completed a on line survey that included the Internet Addiction Test (IAT) and PERMA scale. According to results, internet addiction was different between grade and personality and psychological health was different in gender and personality. Students with higher levels of internet addiction are more likely to be low in positive psychological health. The results indicated that positive psychological health was affected by Internet addiction negatively; and provided a better understanding on the positive psychological interventions in reduce internet addiction among Chinese college students.