Stroke is divided into ischemic and hemorrhagic strokes. The following focuses on the early recognition of ischemic stroke, which is often referred to as cerebral thrombosis. It is the death of brain tissue caused by narrowing or occlusion of blood vessels, atrial fibrillation, small vessel lesions, etc., resulting in hemiplegia, aphasia or even death. Therefore, early recognition and identification of the signs of stroke and active and effective treatment and rescue are especially important to reduce the sequelae and improve the quality of survival of patients. In fact, the diagnosis of stroke is not difficult for most patients. A common international method for rapid identification is to use the Cincinnati Prehospital Stroke Scale (CPSS) for examination. It consists of three components: smiling, lifting a limb and saying a sentence. Facial asymmetry and crooked corners of the mouth when smiling; inability to hold an upper extremity horizontally for 10 seconds and drop or fall, and inability to hold a lower extremity horizontally for 45° and drop or fall for 5 seconds; and unclear speech and difficulty communicating when speaking. These signs may occur singly or 2-3 at the same time. Once any of these conditions are present, it indicates that the patient is most likely to have a cerebral thrombosis. The patient should go to the hospital immediately to avoid delaying the diagnosis and treatment of the disease in order to reduce the degree of disability and mortality.