AIM: To investigate the methods and treatments of the exposure of hydroxyapatite implantation in orbit. METHODS:Thirteen cases of hydroxyapatite exposure were included in this study. They were treated with amniotic membrane and fascia lata transplantation. Artificial eyes were implanted in 5 to 8 weeks. The patients were followed 6 to 18 months. RESULTS: No exposure appeared and the cosmetic effect was satisfactory. CONCLUSION: Amniotic membrane and fascia lata transplantation is an effective method to repair hydroxyapatite exposure.