The electric stimulator according to the present invention can effectively improve the brain functions of patients suffering from brain disorders by applying electric stimulation to the brain of the patient effectively. The electric stimulator of the present invention comprises main electrodes H to be stuck to particular sites of the patients body extending from the neck part to the head tip part, which can apply electric stimulation to the brain without passage through the brain stem. The particular site may be selected from the temple part, the forehead part above the eyes, the cheek part and the rear neck part. The electric signal to be applied to the main electrodes H is set so as for weak electric current of 100 µA or less to flow through the patients body and stimulate the brain. In addition to the application of electric stimulation by the main electrodes H, auxiliary electrodes S may be stuck to the back of the patient in order to effectively provide electric stimulation to the brain through the spine as peripheral nerves.
