ABSTRACT Introduction: Wrist joint strength is important in tennis for angle control and racquet direction. Objective: Study the changes in muscle strength in the wrist region and the characteristics of joint movement under different tennis stroke styles. Methods: 50 students from a professional tennis club team at a university were selected as study subjects, and systematic professional wrist strength training was performed in the experimental group. In contrast, routine training was performed in the control class. The experimental training lasted for six weeks. During this period, the learning time of all groups remained the same, and no additional training or learning was added. Results: The experimental group's stability increased significantly, from 1.78 ± 0.67 to 2.25 ± 1.34 before training, and backstroke strength increased significantly, from 6.21 to 10.21; total stroke score also increased from 8.02 to 12.69. Conclusion: Improving wrist strength in tennis students may improve overall sports performance. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.