Respiratory training is indicated for: (1) Chronic obstructive pulmonary disease, mainly chronic bronchitis and emphysema. (2) Chronic restrictive lung diseases, including post pleurisy and post chest surgery. (3) Chronic parenchymal lung diseases, including tuberculosis and pneumoconiosis. (4) Asthma and other chronic respiratory diseases with respiratory dysfunction. Respiratory training methods: (1) lip contraction breathing (2) tightly closed lips, inhalation through the nose, inhalation while silent count 1, 2, 3, to the end of inhalation (3) lip contraction into a whistle-like, continuous slow exhalation, while contracting the abdomen, silent count 1-6. The same can achieve a certain purpose of breathing training.