Auricular Concha Electro-acupuncture for the Treatment of Depression

Inclusion Criteria: 1. The diagnosis is consistent with DSM-V diagnostic criteria for mild-to- moderate depression; 2. Patients with the first onset or recurrence of the disease have not been treated with antidepressant or without antidepressant treatment before treatment for 3 months; 3. Age from 18 to 65 years old, with no gender; 4. Outpatient; 5. 17 Item Hamilton Depression Rating Scale (HAMD-17) score \> 7, and \<24; 6. Signed informed consent. Exclusion Criteria: 1. In addition to depression, it conforms to the diagnostic criteria of any psychiatric disease; 2. Patients with a history of schizophrenia or other mental illness; 3. Patients with cognitive impairment or personality disorder; 4. In the past 6 months, patients who have met the DSM-V criteria for substance related and addictive disorders; 5. Before entering the group, any other antidepressant treatment is being accepted; 6. Patients with serious body disease, such as heart disease (namely Ⅱ and Ⅱ above cardiac function) , obvious abnormalities of liver and kidney function (Biomarkers more than 3 times normal); 7. Serious suicidal ideation or suicidal behavior.