Nursing students are trained in patient safety issues in clinical settings during their undergraduate nursing education both theoretically and practically. This study aims to test the psychometric properties of the Turkish version of the "Health Professional Education in Patient Safety Survey" which was developed to measure healthcare professional candidates' patient safety knowledge and competence both in the classroom and clinical settings during their education. The data for this methodological study were collected from 305 nursing students in 2017. The tool consisted of 23 items, two main dimensions as classroom and clinical settings and six subscales. Content validity ratings of the scale items were over 0.80. Five modifications were made during the Confirmatory Factor Analyses. Three of the modifications were among classroom items and two of them were from clinical settings items. After modifications, fit indices were calculated as: chi 2/df = 2.58, RMSEA = 0.072 and CFI = 0.95 for the classroom. They were chi 2/df = 2.23, RMSEA = 0.063 and CFI = 0.96 for the clinical settings. Cronbach's alpha coefficient was 0.97 for both classroom and clinical settings. In conclusion, The Turkish version of the scale is valid and reliable in assessment of patient safety knowledge and competence of nursing students.