Cephalic percussion test is a method to check for radiculopathy. The specific method of cephalic percussion test is to let the examinee sit and stand, the examiner’s palm of one hand in contact with the top of the patient’s head, the other hand clenches a fist and percussion of the patient’s head on the arm, if the examinee feels pain in the neck and neck, numbness, or soreness on one side of the arm, etc., it will be a positive test, and it is considered to be the possibility of cervical disease of the nerve root type. It is recommended to avoid prolonged bowing of the head, slanting of the neck to see objects or long time sitting and standing and other bad habits, and to correct the sitting posture in order to prevent cervical spine lesions. If there are symptoms such as neck pain, arm numbness, dizziness, headache, etc., it is necessary to consider doing a head percussion test to rule out the possibility of cervical spondylosis. The head percussion test must be performed by a professional physician to avoid excessive force or manipulation, which may aggravate cervical spondylosis or stimulate the brain.