A 55-year-old woman presented with headache, dizziness, and decreased visual acuity. Magnetic resonance imaging revealed a sellar mass with sphenoid sinus extension. The result of hormone showed an obviously high prolactin (815 ng/mL). The mass was resected and diagnosed with aspergillosis pathologically. Postoperatively, the level of prolactin dramatically decreased, and the patient received medical treatment with voriconazole and caspofungin. During a 6-month follow-up, the patient's headache and dizziness disappeared, and visual acuity improved. Therefore, aspergillus sellar abscess could result in hyperprolactinemia and should be considered in the differential diagnosis of a sellar mass, even in immunocompetent patients. A combination of surgery and antifungal therapy could reduce the hyperprolactinemia and improve symptoms.