This study aims to develop a measurement tool to determine the level of academic jealousy. For this purpose, firstly, the literature was examined, and a theoretical framework was formed, and then an item set of 47 items was created. The items that were submitted to expert opinion were eliminated and corrected, and 41 items were decided to use, and a trial form was obtained. In this study, 478 university students were reached. One-on-one interviews were conducted with ten students who are studying at Alanya Alaaddin Keykubat University before the trial application. Then, the trial form was applied to 254 university students, and the data obtained were analyzed with Exploratory Factor Analysis, and as a result of this analysis, a structure with three factors (maturity, self-denigration, and envy) was revealed. In order to test the defined structure, the final form of the scale was applied to another group of 154 people, and the data obtained were subjected to Confirmatory Factor Analysis, and goodness of fit indices of the scale was found to be between good fit or acceptable fit. Accordingly, the structure with 19-item and three factors was confirmed Cronbach Alpha internal consistency coefficient of the whole scale was found .779, Envy subfactor was found .840; self-denigration subfactor was found .840 and Maturity subfactor was found .817. In order to determine the reliability of the scale in terms of stability, the scale was applied to a different group of 57 people at two-week intervals, and the correlation between the two applications was recorded as .89. It was concluded that the Academic Jealousy Scale developed according to these findings, is a valid measurement tool and will give reliable scores in measuring academic jealousy.