Abstract:Cardiorespiratory fitness is known as the “fifth vital sign” and is closely related to the onset, progression, and prognosis of various common and chronic diseases. As the leading cause of adult mortality and disability in China, stroke often leads to dysfunction such as decreased cardiorespiratory fitness, which affects patients' rehabilitation prognosis and increases their risk of recurrent stroke. In recent years, more and more rehabilitation medical workers have realized the importance of cardiorespiratory fitness in stroke rehabilitation. This article introduces the mechanism of decreased cardiorespiratory fitness in stroke patients, as well as the evaluation and training methods for cardiorespiratory fitness, in order to provide reference for comprehensive rehabilitation of stroke.