Electroconvulsive therapy (ECT) is primarily indicated for mood disorders and schizophrenia. Clinicians may encounter cases in which ECT is administered to patients with various kinds of complications. However, to our knowledge, no detailed medical guideline is available about the indications for ECT in psychiatric illness complicated with a concomitant brain tumor, which is one of the most likely physical complications that can directly affect ECT. We report a case in which 3 courses of modified ECT (m-ECT) were successfully administered without any neurological deterioration to a patient, who was frequently hospitalized for recurrent depressive disorder with stupor. We did not undertake any additional measures for reducing adverse events derived from the meningioma during m-ECT. In this report, we discuss the relation between brain tumor and depression.