Brain herniation is a very dangerous condition that can be triggered by hemorrhage in the left temporal lobe, which can result in severe impairment of cerebral neurological function, with a high rate of death and disability, and often leaves lifelong sequelae. Once cerebral hemorrhage is complicated by brain hernia, emergency treatment, surgery and medication are necessary to minimize the damage to the brain and nerve function. According to the development of cerebral hernia, it can be divided into three stages: early stage, middle stage and late stage. If effective treatment measures can be taken in the early and middle stages to reduce the damage to brain tissue, most patients have a good prognosis, and rehabilitation training for a few months or about 1 year will help restore limb function as soon as possible. If the disease progresses to the advanced stage and has caused irreversible damage to the brain tissue, even after timely treatment, the prognosis is mostly unsatisfactory and even life-threatening. Patients with left temporal lobe hemorrhage should be treated promptly and effectively to avoid progression to the stage of brain hernia. If there are after-effects of brain herniation, rehabilitation training should be carried out under the guidance of professional rehabilitation doctors, so as to return to normal life as soon as possible.