Hairy cell astrocytoma grade 1 can live for five years or more, even up to decades. The five-year survival rate is more than 85%, and the 25-year survival rate after total resection is more than 95%. Hairy cell astrocytoma is classified as grade I astrocytoma in the 2007 WHO classification, which is slow-growing and occurs in children and adolescents. Surgical resection has good results, and the prognosis of total surgical resection is good, with almost no recurrence, and for patients who have not been completely resected, appropriate postoperative radiotherapy and chemotherapy can also achieve ideal results. If the diagnosis of Hairy cell astrocytoma grade 1 can be confirmed in time and receive professional treatment, choose the appropriate surgical plan, and maximize the resection of the lesion, the patient’s life can be greatly prolonged. In order to avoid delaying the condition and causing serious consequences, patients should go to regular hospitals for targeted examination and diagnosis in time, and determine the surgical plan under the guidance of professional physicians.