Introduction: Abdominal core strength is one of the main factors controlling body balance, helping to efficiently apply body kinetic energy to the movements of Tae Kwon Do martial arts. Objective: Explore the effects of abdominal core strength training on postural stability in Tae Kwon Do athletes. Methods: Forty Tae Kwon Do competitors were randomly selected and divided into experimental and control groups. The control group was subjected to the club's regular exercise program, while the experimental group added three months of stabilization exercise to the regular exercise program. The changes in the experiment on each index were analyzed statistically. Results: After 3 months of postural balance training, Tae Kwon Do athletes' center of gravity stability was improved. The results showed significant improvement in squatting, stretching, thoracic girdle flexibility, balance ball flexion, and ipsilateral hand extension (P<0.05). Conclusion: Abdominal core strength training can improve core muscle group strength in taekwondo athletes. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.