[Objective] To discuss the clinical outcomes of Halo-traction and magerl technique for children atlantoaxial anterior dislocation. [Methods] From September 2014 to Feburary 2017, 15 patients(6 males and 9 females) with a mean age of 10.93±2.60 years(range 6 to 14 years old) suffering from children atlantoaxial anterior dislocation were reviewed. All patients had different degree of spinal cord compression in MRI, and the preoperative JOA score was 4-13(mean，8.47±2.50). All patients had undergone Halo-traction which was performed with a mean weight of 4.80+0.41kg(range, 4-5kg) and a mean traction time of 14.20±6.61d(range, 7-30d). All patients underwent the Magerl surgery for atlantoaxial anterior fixation fusion. The clinical efficacy was evaluated by JOA scores. [Results] All patients underwent the halo-traction and the Magerl surgery successfully and had completed the bilateral UCSS screw fixation. The average operation time was 113.33±18.77 minutes(range, 85-150 minutes) with an average blood loss of 74.00±18.04ml(range, 40-100ml). No severe complications such as injuries of vertebral artery, spinal cord and nerve root occurred. Imaging data showed all UCSS screw positions through the atlantoaxial joint were suitable, without atlanto occipital joint activity limitation. Postoperative symptoms improved significantly. JOA score of the first week after operation was 10.53±2.72 (range, 6-15)，which was superior to preoperative scores (P<0.05). The follow-up was 12-48 months，with an average time of 32.00±8.68 months, and all patients got bony fusion 3 to 6 months post-operation. During the follow-up, no instrument failure has occurred. During the final follow-up, the JOA score was 10-17(mean，14.27±2.40), which improved significantly than pre-operation and 1 week after operation (P<0.05). [Conclusion] Preoperative Halo-traction combined with Magerl surgery in treatment of children with atlantoaxial anterior dislocation is clinically effective.