Objective To evaluate the clinical application of the ellipsoidal eye model in reconstruction of conjunctival sac. Methods Clinical data of 11 eyes of 11 patients with grade Ⅲ-Ⅳ conjunctival sac stenosis from Jun. 2015 to Jun. 2017 were analyzed retrospectively. These patients were treated with the reconstruction conjunctival sac with the ellipsoidal eye model. After 6 months, all cases received secondary incision and separation of conjunctival sac, they wore artificial eyes after healing of eyelid margin. The followed-up time was 3-6 months, and the size, shape and color of conjunctival sac were observed. Results All the transplanted tissues were survived.The shape of conjunctival sac was good in 10 patients, satisfactory appearance after wearing artificial eye. The improved rate was 90.9%. Conclusion Application of ellipsoidal eye model in reconstruction of conjunctival sac is effective. Key words: Model, eye, ellipsoid; Reconstruction, conjunctival sac