Interstitial pneumonia has a strong impact on lung function, mainly by decreasing lung capacity, in addition to decreasing lung ventilation, so doing appropriate exercises based on proper treatment will be of great benefit in slowing down the decline of lung function and improving tolerance, as well as improving immunity. It can be done by walking slowly, doing taijiquan, baduanjin or breathing exercises to exercise lung function and enhance the function of respiratory muscles. Regardless of which exercise the general principle is that after exercise, there is no difficulty in breathing and obvious shortness of breath and oxygen saturation drop, shortness of breath strong patients can also do bedside walking and exercise under the condition of oxygen.