Stem cells have a good clinical effect on hemiplegia and are a promising treatment, but the technology is in the clinical research stage and has not yet been widely used in clinical treatment. There are many causes of hemiplegia symptoms in patients, commonly such as ischemic stroke and hemorrhagic stroke. In the assessment of clinical efficacy, it can be seen that stem cells can effectively improve the neurological deficits of stroke patients and improve the ability of autonomous behavior of patients. However, the technology is not yet mature, and further research and trials are needed, such as the optimal timing of treatment, the number and source of stem cells, and so on. Currently, common clinical treatments for hemiplegia include general treatment, medication, rehabilitation, etc. Surgery can be performed if necessary. Family members should pay attention to the patient’s care, such as changing the patient’s position regularly, supplying nutritious and easy-to-digest food, massage, etc., to prevent complications such as muscle atrophy and deep vein thrombosis of the lower limbs. The sooner hemiplegic patients receive professional treatment, the greater the possibility of functional recovery. It is recommended that patients should be treated under the guidance of a professional doctor and should not blindly use medication on their own to avoid adverse consequences.