Mass assessment of large samples' nature of science views has been one of the core concerns in science education research. Due to impracticality of using open-ended questionnaires or conducting interviews with large groups, another line of research has been required for mass assessment of pupils' nature of science conception meaningfully. Considering these issues, Chen et al. (2013) developed the questionnaire titled Students' Ideas about Nature of Science (SINOS) to evaluate young students' NoS views. This study targeted to translate and adapt SINOS into Turkish with the aim of measuring Turkish middle-school students' nature of science (NoS) views. Analysis results presented confirmation for the reliability and validity of Turkish version of the questionnaire with seven-factor structure as similar to the original questionnaire. The study concluded with recommendations for use of SINOS in Turkish context in order to improve NoS perspectives in national science curriculum.