Objective To approch the characteristic of diagnosis and treatment of optic nerve injury in double wall optic canal.Methods Six patients,with double wall optic canal found by CT,were treated by drug,operation and visual rehabilitation training.The results of CT,vision-evoked potential and visual recovery were analysed.Results In 6 patients,4 were holo-double wall optic canal and 2 were mero-double wall optic canal,4 were found having bone fracture.All the 6 cases were effective to treatment including 3 patients whose vision was over 0.1.Conclusion In double wall optic canal,the degree of optic nerve injury is slight,visual recovery is better by drug,operation and visual rehabilitation training.