Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive, fibrotic interstitial lung disease with lesions confined to the lungs, preferably in the middle-aged and elderly population, with characteristic lung histology and/or chest high-resolution CT (HRCT) manifestations of common interstitial pneumonia (UIP) with common symptoms: collapse of one side of the chest, telangiectatic breathing, exertional dyspnea, dry cough, pus sputum, and dyspnea. Preventive measures: 1. Because of the slow course of the disease, medical personnel should examine carefully and make a clear diagnosis. 2.Patients should be encouraged to establish confidence in overcoming the disease and actively cooperate with the treatment. 3.Strengthen physical exercise to enhance the ability to resist the disease, and pay attention to keeping warm in winter. 4, pay attention to diet modification, increase nutrition; smokers must quit smoking. 5.Patients should be encouraged to participate in pulmonary rehabilitation exercise programs such as daily walks, pedal fixed bicycle, etc., although it can not increase lung capacity, but can change the activity tolerance, so that the symptoms of respiratory distress to reduce, improve the quality of life. 6.Keep the respiratory tract open, use antibiotic nebulized inhalation at any time while assisting the patient to excrete sputum. 7, active and thorough treatment of internal and external lung diseases is important to prevent the occurrence of septic pleurisy.