Abstract: Objective: To explore the possibility of the hydroxyapatite orbital implants after children-retinoblastoma-eyeball-excision operations. Methods: For 21 cases (21 eyes) with retinoblastoma, enucleation was executed with the exposed hydroxyapatite orbital implant at its early stage. Results: Three-month to five-year subsequent visits showed that the orbitals acted well in good shape and developed desirably in the orbit and the face. For the two cases with orbitals exposure. One exposed 4 mm×5 mm,cured with the treatment of restoratin-superficial-skin-gowth-factor eyeliquid, the other exposed 9 mm×9 mm, cured with the operation of amnion cover. Conclusions: The hydroxyapatite orbital implants had satisfactory effects after retinoblastma operations, with good help for children's orbits and faces growth,with little influence on radiotherapy or CT examination. The most common complication is the eye exposure.