Purpose The study aims to develop a measurement tool that will determine the innovative leadership levels of nurses. Methods This methodological paper was conducted with 615 nurses. The content validity, factor analyses, and Cronbach's alpha test were used for psychometric assessment. Findings As a result of the exploratory factor analysis, the scale consists of 43 items and five subscales. Confirmatory factor analysis showed that the innovative leadership scale (ILS) is a valid model. Practical Implications There is a need for innovative leading nurses in the healthcare field. The psychometric assessment showed the ILS is a valid and reliable scale.