Objective To evaluate the reason of the complications after treating by the intermaxillary traction with the titanium screw and put forward the measures of prevention these complications in mandibular fractures.MethodsOne hundred and twenty-six cases with mandibular underwent intermaxillary traction and fixation with tapping titanium screw were observed and counted for their complications in 1-30 days after finishing the operation.Summarized and analyzed the reasons of the complications.ResultsThe rate of complications was 9.52％(12/126),4 cases of titanium screw loosen,2 cases of bad occlusion,1 case of titanium screw fallen off,1 case of titanium screw around infected,1 case of root tip damage,1 case of titanium screw maxillary penetrated into the sinus,1 case of nerve injury,1 case of dental ulcer.Conclusion The intermxillary traction with the titanium screw is simple,safety and healthy method,but the postoperative complications also don't allow to ignore,surgeons should be controlled strictly,standardized operation,try to avoid complications.