The aim of this study was to investigate the relationship between smartphone addiction and life satisfaction of the students studying at faculty of sport sciences and to determine whether these parameters differ in terms of various variables. In the study, the Smartphone Addiction Scale developed by Kwon et al. (2013) and adapted to Turkish by Noyan et al. (2015) was used to determine the level of smartphone addiction of the participants. Life Satisfaction Scale developed by Diener et al. (1985) and adapted to Turkish by Köker (1991) was used to determine the life satisfaction levels of the participants. Conventional sampling method was preferred for sample selection and face-to-face survey method was used for data collection. In the analysis of the obtained data, descriptive statistics, Independent Sample t-test, One-way ANOVA and Pearson Correlation Analysis were used. A total of 554 volunteers participated in the study: 276 males (49,8%) and 278 females (50,2%). According to the results of the research, smartphone addiction and life satisfaction parameters had a statistically significant difference according to various variables. In addition, there was a significant negative correlation between life satisfaction and smartphone addiction. As a result, it was determined that as life satisfaction levels increased, smartphone addiction levels of participants decreased.