The aim of this study is to examine the mediating role of the mindfullness in the relationship between the school burnout and problematic smart phone (PSU) and social media use (SMA). The participants of the research consists of 411 students studying in the high schools in the city centre Erzurum in Turkey in 2020. Research data were obtained through the Smart phone Addiction Scale-short version, The Social Media Addiction Scale short form, the awareness scale for children and adolescents, and the Student form of the Maslach Burnout Inventory. The relationship between the variables of the research was examined by Pearson coorelation analyses. The SPSS-22 program was used for correlation analysis and the Jamovi 1.0.7 program was used for analyses on the mediating role of mindfullness. At the end of the study, it was found out that there is a mediating role in the relationship between mindfullness, exhaustion sub-size of the school burnout scale, and PSU and SMA. In the other result of the research, it has been found out that mindfullness mediated the relationship between the depersonalization dimension of the school burnout and SMA In another conclusion obtained from the study, mindfullness has been found not to mediate the relationship between the competence dimension of the school burnout, PSU and SMA. Also, in another similar conclusion, mindfullness has been found not mediate the relationship between the competence dimension of the school burnout and PSU.