Stroke is a group of cerebrovascular diseases caused by organic brain injury, with sudden onset and rapid onset of limited or diffuse cerebral deficits as common clinical features. Cranial CT should be performed to determine if the stroke is ischemic or hemorrhagic. At the same time, routine blood tests, liver and kidney functions, electrolytes and other routine tests should be performed to assess the overall condition of the patient and to lay the foundation for the next treatment. Then, improve the tests related to etiology search. Common causes of stroke include vascular, cardiogenic and hematologic causes. In this regard, the patient’s past medical history and physical examination can be used to improve the cerebrovascular imaging, cerebral blood flow, four coagulation tests, electrocardiogram, cardiac ultrasound, immunological series and other relevant tests and laboratory tests to find the cause of the stroke. Finally, the assessment of the efficacy of treatment. During the treatment of stroke patients, the effect of treatment can be evaluated and the treatment plan can be adjusted by re-examining the cranial CT, cerebrospinal fluid and other relevant tests and labs. To summarize, stroke patients need to be diagnosed and treated under the guidance of a neurologist, who can take into account the patient’s condition and medical history.