The aim of present research was relationship between the social isolation, Anxiety, depression and sleep disorders among internet Dezful user.The samples including 300 persons of internet Dezful user that have been selected by the cluster random sampling. Beck Depression test, wood worth social isolation questionnaire, Cattle anxiety test and sleep disorders questionnaire have been usedfor the data collection. Pearson correlation coefficient and multiple regression analysis at level P<0.05 have been used for the data analysis. The data showed: There was significant relationship between social isolation, depression and anxiety with sleep disorders in men and woman. And the best predictors of sleep disorders were social isolation, anxiety and depression in men and social isolation, depression and anxiety in men.