This study is an attitude scale development study that reveals high school students (9th, 10th, 11th grades) literary curiosity. It is thought that students with high literary curiosity have a reading culture. Reading culture is a reading level reached by transforming reading into a habit and critical reading skill. The scale created for this purpose is a 5-point Likert-type scale consisting of 30 items. The scales pilot study was conducted on 522 high school students in the fall semester of the 2018-2019 academic year. Exploratory factor analysis was performed to assess the construct validity of the scale. A relationship was found between the variables in the factor analysis of the items (KMO=0.955>0.60). This size was sufficient for factor analysis. As a result of the factor analysis, the variables were gathered under four factors with a total explained variance of 52.664%. The Cronbach's Alpha ([alpha]) internal consistency coefficient for the scale items was found to be 0.945. According to the scale and test-retest findings, the scale scores differed in the bottom 27% and top 27% groups. Therefore, the literary curiosity scale was found out to be a valid and reliable instrument considering the alpha for reliability, the explained variance value, and the factor loads.