This research aimed to evaluate the validity and reliability of the Turkish adaptation of the Quality Nursing Care Scale. Enhancing the quality of nursing care is fundamental to improving patient safety and reducing healthcare expenditures. To monitor and improve care standards, dependable and valid instruments for measuring nursing care quality are required. Employing a methodological and cross-sectional design, the study was conducted among 225 nurses working at a training and research hospital. The scale’s psychometric properties were examined through analyses of content and construct validity, item performance, and internal consistency. The content validity index was 0.96, with item–total correlation coefficients exceeding 0.72. Factor loadings varied between 0.42 and 0.90. In contrast to the original version, the Turkish form revealed a three-dimensional structure. Model fit indices indicated satisfactory to excellent alignment. Cronbach’s alpha for internal consistency was found to be 0.99. The Turkish version of the Quality Nursing Care Scale demonstrated excellent psychometric strength with a three-factor model, supporting its applicability for assessing the perceived quality of nursing care among Turkish nurses.