[Objective]To investigate the short-term outcomes of core muscle training for mild adolescent idiopathic scoliosis.[Meth-ods]A retrospective study was conducted on 33 patients who were hospitalized for adolescent idiopathic scoliosis in our hospital from Decem-ber 2021 to June 2023.According to the results of doctor-patient communication,18 patients received systematic core muscle training(CM group),while other 15 patients received traditional physical training(TP group).The clinical and imaging data of the two groups were com-pared.[Results]All patients in both groups successfully completed the training without serious adverse reactions.There was no significant difference in treatment compliance VAS scores between the two groups(P>0.05).After 10 weeks of treatment,the standing height and sitting height were increased(P<0.05),the main curve Cobb angle,C7-CSVL and SVA,the temperature difference between the paravertebral mus-cle and rectus abtris in infrared thermal imaging,and the plantar pressure transfer in the 2~5 metatarsal bone and the medial heel region were significantly improved in both groups(P<0.05).At 10 weeks after of treatment,CM group proved significantly superior to the TP group in terms of standing height[(156.5±4.6)cm vs(155.8±4.3)cm,P<0.001],sitting height[(84.4±4.6)cm vs(82.6±4.4)cm,P<0.001],Main curve Cobb angle[(15.3±3.1)° vs(17.1±3.9)°,P<0.00l],C7PL-CSVL[(23.3±3.1)mm vs(25.3±3.2)mm,P<0.001],and SVA[(31.5±3.9)mm vs(33.8±3.9)mm,P<0.001].[Conclusion]The core muscle training does strengthen the core muscles on both sides of the spine and im-prove the spinal spatial balance,which is of great significance for the prevention of spinal deformity.