Objective: To explore the relationship of social support, loneliness and phone addiction tendency in college students. Methods: 328 college students completed the Mobile Phone Addiction Index Scale(MPAI), Multidimensional Scale of Perceived Social Support(MSPSS) and UCLA Loneliness Scale. Results: The phone addiction tendency was negatively correlated with social support, and positively correlated with loneliness. Social support had a negative effect on loneliness and Loneliness had a positive effect on phone addiction tendency; loneline...