Research in general psychology has extensively covered all components of the human psyche, in order to understand the nature of the human psyche in order to explain it and work to develop and enhance it to reach the best positive results and reduce the possible negatives in order to avoid falling victim to failure on the sporting level. The importance of the research lies in the inevitability of the athlete exploiting all available abilities and skills to achieve excellence and ensure victory in the match and then the championship. Because of the multiplicity of psychological skills, it has become necessary for us to determine the psychological skills that the player possesses and the most frequently used ones, and then determine their relationship with other psychological variables and the percentages of their contribution to the variables of positive thinking. Hence, the research problem emerged to extensively study this variable to enhance and develop the psychological aspects of the players due to the great pressures that this team-game requires. The objectives of the research were to build a measure of positive thinking and establish the standard levels among the basketball premier league clubs’ players in Iraq for the season (2023-2024). In their study, the researchers relied on the descriptive approach using the survey method, as it suits the nature of the problem and achieves the research objectives. The research population was (144) players from Premier League basketball clubs, and the sample was selected using a comprehensive enumeration method, and their percentage was (100%). The sample was distributed in order to build and design a measure of positive thinking as follows: Initial application sample (exploratory experiment) which consisted of (12) players, at a percentage of (8.33%). The construction sample consisted of (96) players, at a percentage of (66.67%).