RESUMO
Objective: To explore the structural relationship of social support,loneliness and internet addiction tendency.Methods: Questionnaires were used to investigate 355 college students.Results: The internet addiction tendency of college students had significant negative correlation with social support total scores and subjective social support,and positive correlation with the total scores and every dimensions of loneliness;college students’ social support had significant negative predictive effect on internet addiction tendency;loneliness of college student played a completely mediating role between social support and internet addiction tendency.Conclusion: Loneliness of college students plays a completely mediating role between social support and internet addiction tendency.