Chronic obstructive pulmonary patients need to pay attention to the following aspects of diet: 1, avoid over-eating cold food, Chinese medicine believes that over-eating cold food can injure the spleen, spleen deficiency is easy to produce phlegm; 2, the lungs are delicate organs, intolerant of heat and cold, need special protection, avoid prolonged use of electric fans or air conditioning in summer, to avoid lung deficiency and chronic cough, cough and phlegm performance; 3, damp-heat patients often show dry mouth, mouth bitter, mouth sticky, unshaped stool sticky unpleasant, such patients should avoid excessive intake of fatty, sweet and thick food to reduce the damp-heat body, to avoid aggravating the disease.