The involuntary slight shaking of the head is considered idiopathic tremor, which is a common neurological lesion, the exact cause of which is not very clear. Studies have shown that it may be genetically related to involuntary movements of the limbs and head, which may be aggravated by emotional stress or exertion, and the involuntary movements cannot be controlled by oneself. Treatment is mainly with anti-tremor drugs, such as beta-blockers, propranolol, anti-epileptic drugs, and paroxetine can only improve the symptoms can not be completely cured. If it cannot be effectively improved by conservative treatment, it can be treated by surgery, which mainly takes the form of deep brain electrical stimulation. Involuntary slight head shaking may also be an early symptom of Parkinson’s. Anti-Parkinson’s drugs can also be applied for diagnostic treatment, in addition to exclude tremor symptoms caused by hyperthyroidism.