In this study, it was aimed to examine the relationship between smartphone addiction and motivation to participate in physical activity within the scope of students studying at the Faculty of Sport Sciences. In addition to the relationship between students' smartphone addiction and motivation to participate in physical activity, it was also examined whether the related characteristics differed according to their age, gender, departments they studied, and whether they were doing licensed sports. In this study, which was conducted in the relational survey model, the Smartphone Addiction Scale and the Motivation to Participate in Physical Activity Scale were applied to 461 volunteer students. In the analyses, independent sample t-test for paired groups, one-way analysis of variance for multiple groups and Pearson correlation coefficient were calculated. According to the results obtained, it was determined that all participants had high motivation to participate in sports, when examined in terms of demographic variables; smartphone addiction was higher in 18-21 years old participants than 22-25 years old participants, motivation to participate in physical activity was higher in female participants than male participants according to gender variable, when examined according to the variable of doing licensed sports, it was determined that licensed sportsmen had higher smartphone addiction and participation in physical activity than non-licensed sportsmen, and there was a negative relationship between smartphone addiction and motivation to participate in physical activity.