Cerebrovascular disease, also known as stroke, is broadly divided into ischemic stroke (transient ischemic attack, cerebral thrombosis, cerebral embolism) and hemorrhagic stroke (hypertensive cerebral hemorrhage and subarachnoid hemorrhage). Stroke has ravaged the world and has become the number one killer threatening human health. Cerebrovascular disease is a corresponding pathological and clinical problem caused by lesions in the blood vessels supplying the brain. Therefore, attention to the lesions of the blood vessels themselves should be fundamental and fundamental in the prevention and treatment of cerebrovascular disease. However, the clinical management of cerebrovascular disease is increasingly dependent on advances in imaging. After the onset of stroke, cranial CT and MRI examinations have become routine in the clinic, and many patients have had numerous MRIs, but images of blood vessels cannot be found in these thick films. Some physicians focus only on the site and size of the infarct and do not care what is wrong with the vessels. More than 90% of physicians currently miss or fail to properly perform clinical neurovascular examinations when diagnosing and treating ischemic stroke cases. Stroke can be prevented by timely detection of cerebral atherosclerotic vulnerable plaques and cerebral artery stenosis and early intervention in diseased cerebral arteries, and stroke can be effectively controlled. Our cerebrovascular interventional ward is equipped with a variety of advanced cerebrovascular examination and treatment instruments such as bedside transcranial Doppler ultrasound diagnostic instrument and Siemens large cerebral angiography machine, which systematically establishes standardized diagnosis and treatment measures for stroke assessment and makes the treatment of stroke sequential and procedural. Patients suspected of having stroke by history, symptoms and cranial CT examination enter the sequential stroke diagnosis procedure: Step 1: Basic neurovascular clinical examination. Neurovascular examination is the most basic component of the clinical cerebrovascular examination and is the beginning of the vascular examination. The standard clinical neurovascular examination includes: ① palpation related to the blood supply arteries, mainly the carotid and flexural arteries, to obtain information on the strength and symmetry of the arterial pulsations. ② Simultaneous measurement of blood pressure in both upper extremities to understand the consistency of blood pressure in both upper extremities. ③Cerebral vascular auscultation, select the bell-shaped stethoscope to auscultate the main body markings of cerebral arteries, the main auscultation areas include carotid auscultation area, vertebral artery auscultation area, subclavian artery auscultation area and ophthalmic artery auscultation area, to understand the sound symmetry of vascular pulsation and the presence of murmurs. Step 2: Cerebrovascular ultrasound technique examination. It is mainly cervical vascular ultrasound and Doppler ultrasound of intracranial vessels (TCD). The EMS-9 transcranial Doppler ultrasound machine introduced in our cerebrovascular ward is a non-invasive examination method for cerebrovascular diseases, which can understand blood flow velocity, vessel wall morphology, and the number of microemboli in circulation, allowing real-time dynamic observation and long-term dynamic monitoring, and can detect narrowed or occluded vessels at early asymptomatic stage in stroke-prone people. If the cerebrovascular ultrasound technique reveals that the patient has vulnerable plaque in the carotid artery and significant abnormalities in cerebral blood flow velocity, the next step is cerebrovascular imaging. Step 3: Cerebrovascular imaging examination. It includes digital subtraction angiography (DSA), CT angiography (CTA), magnetic resonance angiography (MRA), mainly to understand the structure of blood vessels in detail, whether there are stenosis, occlusion, aneurysm, malformation, etc. Digital subtraction angiography (DSA) is still the gold standard for cerebrovascular examination and a necessary test before endovascular treatment is performed. Step 4: Endovascular treatment. Understanding the vascular situation is ultimately to address the vascular lesions found, and endovascular treatment is the most important of these treatment techniques, including: ① Stenting for cerebral artery stenosis. (ii) Intra-arterial thrombolysis in ischemic stroke. (iii) Embolization of aneurysms and arteriovenous malformations. (iv) Mechanical embolization in acute ischemic stroke. Stroke sequential diagnostic procedures are extremely important for screening, risk stratification and guiding treatment strategies for stroke prone populations.