The purpose of this study is to conduct validity and reliability tests of the Anatolian Preschool Mathematics (ANOMAT) Skills Scale, developed to measure the mathematical skills of children aged 36-85 months. In this context, the scale was individually administered to a total of 471 children selected through stratified sampling from families with low, middle, and high socio-economic status with normal development in the province of Eskisehir/Türkiye. The structural validity of the ANOMAT Skills Scale was tested with confirmatory factor analysis, and the McDonald’s Omega and Cronbach’s Alpha (Alpha ordinal) reliability coefficients of the factors were calculated. The results showed that the ANOMAT Skills Scale consisting of 156 items and four factors (numbers, operations, measurement, and geometry) is a valid and reliable tool for assessing the early mathematical skills of children aged 36-85 months.