Sarcopenia, a disease characterized by the gradual loss of muscle quantity, mass and strength, has become a wide concern. Sarcopenia occurs easily in the elderly patients with late-stage stroke. Stroke and sarcopenia are closely associated with pathogenesis, and the two affect mutually in the disease progression. Previous studies have found a relationship between sarcopenia and the severity of lesions, adverse functional outcomes, neurological deterioration, recurrent cerebrovascular events, and cognitive dysfunction in the elderly stroke patients. In this article, we reviewed the current research status of the influence of sarcopenia on the prognosis of the elderly stroke patients and discussed the correlation between the two, so as to provide directions for future clinical research.