Objective To investigate the effect of microsurgery on the operation and symptom improvement of patients with para-sagittal sinus meningioma in functional area. Methods From May 2015 to May 2018, 40 patients with parasickle meningioma of sagittal sinus in our hospital were randomly divided into two groups: control group (n = 20) and study group (n = 20). The patients in the control group were treated with conventional operation, and the patients in the study group were treated with microscope. Results The volume of blood transfusion and the total resection rate of tumor in the study group were lower than those in the control group, and the duration of hospitalization and operation were shorter than those in the control group. Compared with the control group, the incidence of symptom improvement in the study group was higher (95.00% vs 60.00%), the incidence of symptom exacerbation was lower (0.00% vs 35.00%), the difference was statistically significant (P< 0. 05). Conclusion Microscopy may effectively reduce the amount of blood transfusion, shorten the operation time, improve clinical symptoms and promote postoperative recovery in patients with parasagittal sinus meningioma.