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Objective: The aim of this study is to build an up to date and easy to use Turkish Social Media Addiction Scale for Adolescents. Methods: The sample of the study included 2020 high school students. The scale was five-point Likert-type and consisted of 13 items. The internal consistency of the items was evaluated with Cronbach's alpha coefficient, summability Tukey summability test, adequacy of the number of units in the sample Kaiser-Meyer-Olkin test, factorability Bartlett test, factor structure main components analysis. Results: Cronbach alfa internal consis-tency coefficient of the scale was found to be 0.869. The scale consists of three sub-factors: choosing virtual life, impairment in functionality, and virtual pleasure. Total stated variance regarding the scale was 58.89%. Discus-sion: As a result of this study, a high reliability and validity social media dependency scale was developed. However, it should be kept in mind that all scales developed cannot be valid and reliable in the long term since social media use behaviors in individuals may change over time. [Anadolu Psikiyatri Derg 2020; 21(0.100): 56-61]