Many causes may lead to dizziness and vomiting, which should be analyzed in conjunction with relevant tests and accompanying symptoms: First, if an elderly person suddenly becomes dizzy and vomits, he or she should be alert to acute cerebrovascular disease, such as cerebral hemorrhage, cerebral infarction, or transient ischemic attack. Secondly, if the patient is dizzy and vomits, accompanied by tinnitus and stuffy ears, it may be caused by Meniere’s disease, which can be recurrent in clinical practice and can lead to fluctuating hearing loss after multiple episodes. The third aspect is that sudden dizziness and vomiting may be related to the environment, for example, sudden dizziness and vomiting may occur in summer in a sun-drenched environment with heat stroke. The fourth aspect is that if the patient is stimulated by cold air, it may lead to vasospasm and the above symptoms may occur.