Objective To explore the possibility of three-dimensional orbit replications for clinic and teaching of orbital blowout fracture surgical operation.Methods The orbital CT DICOM format data from 10 patients with orbital floor fractures were selected between November 2016 and January 2017 from Wendeng Osteopath Hospital.Thresholding technique,region growing technique,edit mask technique and multiple slice edit technique were used in sequence by Mimics software.And 3D replications were printed by Object 500 3D printer.The sizes of the replications were measured.The model of orbital blowout fracture and surgical implant model were simulated by senior orbital surgeon.Results In the 10 cases,male was 5 cases,and female was 5 eyes.The 3 D replications of the orbits were successfully designed and printed.The sizes of the 3D replications were basically consistent with those of patients' orbits,and there was no statistical difference (all P ＞ O.05).Under operation room surgery simulation environment,the orbital fracture surgical repair operation was demonstrated to the resident by the senior surgeon,3D printing orbital blowout fracture model can be successfully used to simulate the operation and teaching demonstration.Conclusion 3D printing orbital blowout fracture model can restore the true orbital injury and orbital anatomic details,provides the design operation of stereoscopic model for the physician,which has positive significance to understand the scope and surgery teaching simulation of orbital blowout fracture.