The usage of internet’s becoming widespread and the rapid expansion of its area of use come with some negative consequences. One of these negative consequences is internet addiction. Internet addiction is an important risk factor for adolescents, especially in our country. In this context, the objective of the study is to determine the relationships among internet addiction, parental acceptance-rejection perceptions, regulation of emotions, and psychological symptoms. The research was designed with a multifactorial predictive correlation research model in terms of quantitative research approach. The Sample group is composed of 464 high school students (231 females/ 243 males). Demographic Information Form developed by researchers, Young’s Internet Addiction Test-Short Form, Parental Acceptance- Rejection Questionnaire, Regulation of Emotions Questionnaire (REQ) for Adolescents and Brief Symptom Inventory were used to collect data. In this study, descriptive statistics methods, independent samples t–test, Pearson correlation analysis, and hierarchical multiple regression were used to analyze the data. According to the results of the study, it has concluded that female participants have higher levels of anxiety, hostility, somatization, negative self, depression levels and internal dysfunctional emotion regulation and external functional emotion regulation than male participants. It was observed father rejection that male participants have higher levels of than female participants. There has a positive relationship between the level of internet addiction from depression, anxiety, negative self, somatization, hostility, internal dysfunctional emotion regulation and external functional emotion regulation and external functional emotion regulation levels. Anxiety, negative self, hostility, time spent on the internet, internal and external dysfunctional emotion regulation have been found to be one of the predictors of internet addiction levels. The results discussed in the light of the relevant literature and recommendations have been made within the scope of psychology practices.