In this study, it is aimed to adapt the ‘Relationship Sabotage Scale' (RSS), whose validity and reliability studies were conducted by Peel and Caltabiano (2021), adapting it to Turkish. The adaptation process of the scale was carried out by going through various stages in which the participants were university students. In the first stage of the research, 32 university students were reached for language equivalence study. At the next stage, the study group for the validity and reliability study of the research consists of a total of 266 university students, 150 (56%) female and 116 (44%) male, studying at various faculties in the fall semester of the 2022-2023 academic year. The construct validity of the RSS was tested with Confirmatory Factor Analysis (CFA). Confirmatory factor analysis results show that the 12-item and three-factor structure of the original scale was confirmed. It was observed that the item factor loads of the scale ranged from .56 to .95. According to the findings, it is seen that the scale tested with CFA has sufficient goodness-of-fit indices. For the reliability of the scale, the Cronbach alpha reliability coefficient was calculated; At the end of the analyzes, the total Cronbach alpha reliability coefficient of the scale was found .81, while the Cronbach alpha (α) internal consistency coefficients for the sub-dimensions ranged from .81 to .85. The findings obtained as a result of the study show that RSS is a valid and reliable measurement tool that can be used in evaluating the self-sabotage of individuals in their romantic relationships.