The purpose of this study is to develop a valid and reliable measurement tool for measuring Social emotional learning skills at pre -service teachers at the Field Training. The study group consists of 105 pre -service teachers from Palestinian higher education institutions in the 2021-2022 academic years. The construct validity of the scale was examined by exploratory factor analysis. According to the results of the analysis, the scale measures a five - dimensions structure. The five- dimensions structure of the scale was confirmed by stepwise linear regression analysis. The total variance ratio explained by the scale was determined as 74.20%. In order to determine the reliability of the scale, the internal consistency coefficient of Cronbach’s alpha was evaluated and this value was determined as0.941. The results of all validity and reliability analyze show that the Social emotional learning as a valid and reliable measurement tool in the future studies about Social emotional learning.