The purpose of this research was to study the relationship between internet addiction and mental health among male and female Payame-Noor university students. Fifty students (20male and 30 female) were selected randomly. Internet Addiction Scale (IAS) and General Health questionnaire were used to carry out the study. The results of the study showed that there is no internet addiction between students. Female more than males had signs of internet addiction. Females in comparison with males are more social neglect and have high expectation.