The effectiveness of athletics is one of the important individual games that require when performing and learning their skills and races a high degree of control over the emotions of the individual during the preparation and competition period. Therefore, the importance of the research lies in identifying the level of mental processes and emotional balance of short-distance runners for juniors. The research aims to: Recognizing the mental processes and emotional balance of the junior short-distance runners and evaluating the mental processes and emotional balance of the junior short-distance runners. The researcher used the descriptive approach using the survey method in measuring the mental processes and emotional balance of the short-distance runners for juniors. (110) players for the sports season 2021-2022, and (80) players were selected with a percentage of (72.72%) from the research community in a random way, after which the emotional balance scale and mental processes test were applied to the research sample for the purpose of knowing their level, and statistical methods were used The appropriateness in data processing, as the researcher used the statistical package (SPSS) seventeenth edition. In light of the results of the current research, and the subsequent interpretations, the researcher came out with a number of conclusions, the most important of which are the following: The short-distance athletes have a good level of mental processes and emotional balance. There are real differences among the short-distance players in mental processes and emotional balance. The higher the mental processes and emotional balance, the better the results will be for the short-distance athletes.