Sudden vertigo is a subjective sensory disorder in which patients suddenly feel themselves or objects in their surroundings rotating or shaking. There are many causes of vertigo, such as: intracranial infection, cerebral hemorrhage, cerebral infarction, Ménière’s disease, heart disease, etc. Clinically, patients with vertigo need to actively seek medical consultation, combine the patient’s clinical symptoms and medical history, and improve the auxiliary examinations (such as blood, urine and stool routine, cardiac enzymes, electrocardiogram, brain CT, stigmata test, etc.) in ENT, neurology, orthopedics and cardiology departments to find the cause of vertigo attacks and develop appropriate treatment plans. For example, vertigo caused by otoliths can be cured by manual repositioning, adjuvant therapy, surgical repositioning, etc. Vertigo caused by Meniere’s disease can be controlled by using valium and promethazine drugs, and can be treated by rotational surgery after conservative drug treatment fails. Vertigo caused by cerebral hemorrhage needs active hemostatic and diuretic treatment to lower pressure, etc. As we can see, when sudden vertigo occurs, patients need to actively improve the examination to clarify what causes the vertigo symptoms, and then actively carry out the treatment for the cause. In addition, patients should also improve their lifestyle, pay attention to rest and eat a low-salt diet to reduce the number of vertigo attacks.