EEG can dynamically observe the changes of brain function, which is of pivotal significance to the diagnosis of epilepsy, encephalitis, hypoxic encephalopathy, traumatic brain injury, Alzheimer’s disease, metabolic toxic encephalopathy, prion disease and other central nervous system diseases, as well as the determination of the degree of brain damage and prognosis, especially in the diagnosis of epilepsy, which is not replaced by other examination techniques. In view of the fact that some patients with epilepsy have deep discharges and the epileptic waves cannot be traced by conventional EEG, which makes it difficult to diagnose epilepsy and delay treatment, our department is the first one to carry out milli-needle butterfly electrode EEG in the province, which has greatly improved the diagnosis rate of epilepsy and prevented the deterioration of the disease by timely anti-epileptic treatment. The milli-needle butterfly electrode EEG uses Chinese medicine needles inserted into the hypoguan point to trace the electrical activity of the anterior temporal base (a common source of temporal lobe epilepsy) to detect lesions or epileptic waves in this part. Years of clinical experience have proven that milli-acupuncture pterygoid electrodes are safe and reliable. Patients should remember to relax emotionally when doing this test, open their mouth slightly when entering the needles, do not clench their teeth, and cooperate with the technician.