Objective: To investigate the consequences of internet overuse(IO), and its correlation with well-being of stu- dents. Methods: 503 college students with internet experience from Hunan Agricultural University were investigated with the Internet Addiction Test(IAT), Internet Consequences Scales(ICONS) and Multiple Happiness Questionnaire(MHQ). Re- sults: Significant differences were found among IO group, IOT(Internet Overuse Tendency) group and normal group on be- havioral consequences, physiological consequences, economic consequen...