In this study, the aim was to develop a measurement tool that would provide a valid and reliable assessment of secondary school students' mathematical resilience skills. The research was conducted with a sample of 229 students. To ensure the content and face validity of the scale, expert opinions were initially sought, and the scale was revised based on their suggestions. The scale was then administered to the student group, to evaluate the construct validity of the measurements, both Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) were performed. The EFA results indicated that the scale comprised 14 items grouped into four sub-dimensions, labeled as 'value,' 'struggle,' 'growth,' and 'culture.' These factors accounted for 57.667% of the total variance. Regarding reliability, the Cronbach's alpha coefficient was calculated as 0.704. Additionally, CFA confirmed the four-factor structure of the scale. These results indicate that the developed scale is a valid and reliable tool for measuring students' mathematical resilience skills.