Excessive use of social networking services (SNS) is known to have a significant negative impact on mental health in university students. In this study, we conducted an online questionnaire survey of university students and analyzed 146 responses in order to clarify the relation between SNS addiction and self-compassion among university students. As a result, it was found that there was a significant negative relationship between SNS addiction and self-compassion in the university students. In addition, the subscales of "self-judgment," "isolation," and "over-identification" were significantly associated with SNS addiction. These results suggest that selfcompassion education may help reduce the deterioration of mental health caused by SNS addiction.