Abstract: Objective To explore the relationship between interne taddiction disorder and copingstyle,emotional disorder in college students.Methods From five universities in Zhengzhou city,957 college students of grade one and grade three were sellected withs tratified cluster sampling.They were assessed with coping styles questionnaire,In ternet Addiction Scale-Chinese revised,Self-Rating Depression Scale(SDS),and State-Trait Anxiety Inventory(STAI).Results There were 878 valid questionnaires and the effective recovery ratio was 91.75%.The detection rate of internet addiction in the students was 8.31%,and the rate in males(11.59%)was higher than that of in females(4.30%)with significant difference.No significant difference existed in internet addiction rate between grade one(7.33%)and grade three(9.42%).There were significant differences in the scores of all dimensions of coping style between addiction group and normal group(P<0.01).Significant difference also existed in dep ression,anxiety state and anxiety trait betw een the two groups(P<0.01).There were positive correlations between internet use and coping styles of self-accusation,fan tasy,wince,rationa lizational and depression,anxiety state,anxiety trait.How ever the coping styles of solving problem,asking for help were negatively correlated with internet use.Conclusion The internet addiction individuals inclined to negative coping style,and the students with internet addition disorder had obvious anxiety and deperssion disorder.