Tardive tremor is an infrequently form of tardive syndrome that is developed from prolonged treatment with dopamine receptor blocking agents. This condition presents as a prominent tremor that may cause significant distress but currently lacks effective treatment. Electroconvulsive therapy (ECT) has been applied to treat tardive syndrome. In this study, we report a 74-year-old female patient with major depressive disorder, whose tardive tremor and depressive symptoms showed remarkable improvement after receiving 10 sessions of ECT treatment.