This study is aimed to examine the relationship between Internet addiction and academic procrastination and social anxiety. The study group of this research is 599 high school students, 239 (39.9%) female, and 360 (60.1%) male. It is for the Young Internet Addiction Scale, the Academic Procrastination Scale, and the Social Anxiety Scale for Adolescents. The data were analyzed by Pearson Correlation Analysis and Multiple Linear Regression Analysis techniques. According to the findings of the study, positive correlation between internet addiction and academic procrastination and social anxiety shows a significant relationship. In other findings of the study, it was found that academic procrastination and social anxiety predicted internet addiction. According to the findings, the most powerful predictor variable was academic procrastination. Expanding the number of samples in future researches, reaching students from the region and sociocultural level ensures that the findings can be generalized, and more reliable results are obtained.