Abstract:[Objective] To observe the therapeutic effect of pelvic correction combined with core muscle training on adolescent idiopath-ic scoliosis (AIS). [Methods] From January 2022 to May 2023, 86 children with AIS were randomly divided into two groups, with 43 cases ineach group, and were respectively given pelvic correction manipulation combined with core muscle training (composite group) or simple coretraining (training group) for 12 weeks. Clinical and imaging results were compared between the two groups. [Results] At 12 weeks after treat-ment, VAS score, ODI and trunk rotation angle significantly decreased (P<0.05), while SAQ, SRS-22 score and back muscle strength weresignificantly increased (P<0.05). There was no significant difference between the two groups before treatment (P>0.05). At 12 weeks aftertreatment, the composite group proved significantly superior to the training group in terms of VAS , ODI, SAQ [(65.2±5.3) vs (61.4±5.8), P=0.002], the SRS-22 scores [(91.2±8.4) vs (84.8±9.3), P<0.001], and back muscle strength [(440.5±18.3) N·m vs (410.8±17.4) N·m, P<0.001]and trunk rotation angle [(5.2±1.0)° vs (6.5±1.1)°, P<0.001]. In terms of imaging, 12 weeks after treatment, Cobb angle and apical translation(AT) of the main curve were significantly decreased in both groups (P<0.05), and there was no statistical significance in the above imaging in-dicators between the two groups before treatment (P>0.05). However, the composite group proved significantly better than the training groupin Cobb angle and AT of the main curve 12 weeks after treatment. [Conclusion] Compared with simple core muscle training, pelvic correc-tion manipulation combined with core muscle training for AIS can enhance back muscle strength, improve spinal function and quality of lifein the children.