Postural tremor belongs to action tremor, which is generally most common in idiopathic tremor, and can also be seen in Parkinson’s disease, hereditary ataxia and functional movement disorders. 1. Idiopathic tremor: it is a common movement disorder, more common in clinical practice, belongs to hereditary disease, manifested as hand tremor, jaw tremor, head tremor. Typical performance is postural tremor, tremor is often the only abnormal performance of the patient. 2. Parkinson’s disease: mainly manifested as static tremor, often manifested as hand tremor, accompanied by slow movement, muscle stiffness, posture and gait abnormalities, etc., some patients can be combined with mild postural tremor. 3. Hereditary ataxia: gait instability is the most common first symptom, and it can be manifested as locomotor tremor, postural tremor, etc. It is a hereditary disease of ataxia. 4. Functional movement disorders: also known as psychogenic movement disorders, it is a class of common dissociative/transitional disorders, and is a very representative functional neurological disorder. Clinical features are sudden onset and abrupt onset, and tremor is the most common symptom, which can be manifested as resting tremor and postural tremor. When symptoms of postural tremor appear, you should go to the hospital to identify the cause and receive treatment.