When the literature is analysed, the gap in the researches related to STS for social media users is big. This study aims to adapt the Secondary Traumatic Stress Scale (STSS-SM) for Social Media Users to Turkish, which will contribute to filling the gap in social media users. In the study, data of 708 participants aged 18-26 were analysed. Validity and reliability study of STSS-SM was carried out and its three-factor structure was examined. According to the findings in adaptation to Turkish, STSS-SM consists of a single-factor structure rather than a three-factor structure as in the original. EFA results indicate that scale items can be collected under this single-factor structure. In conclusion, based on validity and reliability studies, it can be said that the Turkish version of STSS-SM is applicable in scientific studies.