1, eat less and more meals: clinically, patients with pulmonary fibrosis are mostly accompanied by malnutrition, on the one hand, the body’s nutritional needs will increase, on the other hand, patients with pulmonary fibrosis are mostly accompanied by abdominal distension, loss of appetite and other digestive symptoms, affecting the absorption of nutrients. Smaller and more frequent meals can cater to the nutritional needs and can also avoid dietary disorders that hinder the transportation of the spleen and stomach. Moreover, patients with interstitial lung disease often apply hormone therapy, the application of hormones at the same time will appear hyperphagia, eating less and more meals can also effectively help the body to control weight. 2, eat less spicy, fried and other stimulating greasy food: plain diet should be light. Spicy, fried and greasy food, easy to help wet produce phlegm heat, causing phlegm heat in the lungs, aggravating the disease; furthermore, spicy, fried and other foods are easy to cause hypertonic throat, increased mucus secretion, causing airway hyperresponsiveness, aggravating cough and wheezing symptoms. 3, patients with severe pulmonary fibrosis due to whistling urgency caused by chewing, swallowing difficulties, soft, liquid diet is conducive to digestion and absorption, but also convenient to eat. 4, drink more water: severe pulmonary fibrosis patients because of open mouth whistling, sweating, eating less, the body is often in a state of water loss, resulting in sticky sputum is not easy to cough up. Timely replenishment of water, increase fluid intake, to prevent and correct water loss is important, so encourage patients to drink more water.