People infected with novel coronavirus may have sequelae, depending on the severity of the patient’s illness at the time of infection. For asymptomatic infected or mildly ill patients, there are usually no sequelae, and a few patients may be left with sequelae such as loss of taste and smell function. In severe or critically ill patients, pulmonary fibrosis may develop later due to more severe lung injury, affecting the respiratory function of the lungs. In patients with heart, kidney or multiple organ injuries, there will be varying degrees of organ insufficiency left behind. The drugs can also cause some adverse reactions during the course of administration, for example, patients who apply hormones may have sequelae such as osteoporosis. Therefore, for patients with novel coronavirus pneumonia, rehabilitation training of respiratory function during the recovery period can enhance respiratory function and avoid sequelae such as pulmonary atelectasis.