The study reveals that technical movements, training level, and physical quality of current athletes have become more and more similar. The game performance of the same level of athletes is very different. One of the most important reasons is psychological quality. The purpose of studying the psychological factors affecting shooting accuracy in basketball games is to improve the shooting accuracy of the player. By using literature, observation, and interview methods, some psychological factors such as emotion, self-confidence, attention, and the mental quality of the players are discussed. This study aims to provide some references for effectively improving the shooting performance of basketball players in the game. Analyzing these psychological factors shows that the victory or defeat of the game depends on the technical and tactical level of the players and it also depends on whether the player can overcome the influence of various psychological factors. Therefore, by training and motivation, the player will not lose confidence. By using systematic and scientific training methods, focusing on body training and psyche, the psychological barriers of athletes will effectively be overcome. It will also allow them to maintain and improve their shooting hit rate. Finally, using the existing approaches, the proposed study uses data mining and inferences to evaluate the psychological factors that affect the training of basketball players to enable them to improve their shooting accuracy.