What to eat for patients with chronic obstructive pulmonary disease should be determined according to the current situation of the patients. If the patient is in a stable period of disease and has no obvious symptoms such as cough, expectoration, chest tightness and shortness of breath, effective food conditioning can be carried out at this time. You can eat more vegetables and fruits, edible fungus, celery, etc. to moisten the lung, stop cough and resolve phlegm, improve lung function, and improve lung resistance. However, if the disease has obvious symptoms such as cough and expectoration during the current acute attack, relevant antibiotics or cough and expectorant drugs should be taken orally for the treatment of the disease. Therefore, drugs should be taken in time.