Objective: To explore the CT findings of common orbital neoplasms. Materials and Methods: The CT findings of twenty-five orbital neoplasms verified by pathology and clinical treatment were analyzed retrospectively. Results: Four eyeball tumors, including three retinoblastoma and one melanoma; six intraconical tumors, including two cavernous hemangioma, two lymphoma, one lymphangioma and one inflammatory pseudotumor; eight extraconical tumors, including two inflammatory pseudotumors, two mixed tumors of lacrimal gland, two dermoid cysts, one cyst of lacrimal gland and one teratoma; four subcutaneous tumors of supraorbital margin, including two capillary hemangioma and two epidermoid cysts, another three inflammatory pseudotumors with extraocular muscle and/or lacrimal gland involved. Conclusion: Every orbital neoplasm has its own characteristic CT findings. Specific diagnosis can be made to a certain extent by combining CT features and clinical findings.