The study aims to build a measure of the habits of mind among sports activities players at Zagazig University. The researcher used the descriptive approach, and the sample consisted of (180) male and female players, (90) male and (90) male. The researcher built the scale, and the most important results were the construction of a scale. Habits of the mind (under investigation) and its codification in terms of the availability of scientific transactions (honesty and consistency). The dimensions that measure the habits of mind among sports activities players at Zagazig University (under research) were extracted after factor analysis into (5) dimensions, which are: the first dimension (perseverance) and the number of its expressions (10), the second dimension (controlling the determinants of thinking) and the number of its expressions (8). The third dimension (constant readiness to learn) and the number of its expressions is (9), the fourth dimension (flexibility of thinking) and the number of its expressions is (8), the fifth dimension (attention to others) and the number of its expressions is (8), In its final form, the scale included (43) items. There are no statistically significant differences in the level of mental habits among sports activities players at Zagazig University according to the variable (gender). There are statistically significant differences in the level of mental habits among sports activities players at Zagazig University according to the variable (training age) in favor of training age that exceeds five years. The aim of the study was to build a measure of mental habits among sports activities players at Zagazig University. The researcher used the descriptive approach, and the sample consisted of (180) male and female players, with (90) male and (90) female players. The researcher built the scale, and the most important results were the construction of the scale among sports activities players, and it reached five dimensions, which are (perseverance - controlling the limitations of thinking - constant readiness to learn - flexibility of thinking - attention to others), and the number of phrases in the scale is 43 phrases.