There are many causes of sudden dizziness, blurred vision and unsteadiness, and the treatment methods are also different: First, if the patient suddenly appears during the change of head position, dizziness, blurred vision and unsteadiness, it should be considered to be caused by otoliths, which can be treated by manual reset, and after the manual reset, the patient may have the symptoms of dizziness and discomfort, and can take betahistine mesylate orally. Secondly, if the patient is in the process of getting up, sudden transient dizziness, blurred vision and unsteadiness, consider that it is caused by postural hypotension, suggest that the patient improve the blood pressure in the prone position, if the blood pressure is low, you can take oral raw pulse drink to improve the symptoms, but the most critical thing is that the patient must get up slowly. Thirdly, if the patient’s sudden dizziness, blurred vision and unsteadiness are caused by posterior circulation ischemia, the patient should take oral aspirin and atorvastatin calcium tablets to protect the vascular endothelium and antiplatelet aggregation, as well as oral ginkgo biloba ketone ester drops and flunarizine hydrochloride capsules to improve the cerebral blood supply and improve the symptoms.