The invention discloses a traditional Chinese medicine for improving anoxia endurance and a preparation method thereof, and relates to the technical field of traditional Chinese medicines.The traditional Chinese medicine is prepared from Chinese magnoliavine fruit, unibract fritillary bulbs, pericarpium citri reticulatae, fructus amomi, fructus aurantii immaturus, honey-fried herba ephedrae, bitter apricot seeds, gypsum, licorice roots, figwort roots, radix panacis quinquefolii, fructus perillae, opuntia dillenii Haw.and honey.According to the traditional Chinese medicine, honey-fried herba ephedrae, unibract fritillary bulbs, pericarpium citri reticulatae, bitter apricot seeds, gypsum, radix panacis quinquefolii, fructus perillae and honey have the effects of clearing heat, moistening the lung, eliminating dampness, eliminating phlegm and ventilating the lung to relieve asthma; licorice roots and Chinese magnoliavine fruit have the effects of tonifying the spleen and benefiting qi; fructus amomi and fructus aurantii immaturus have the effects of dissipating the dampness, promoting appetite, warming the spleen and stopping diarrha; figwort roots and opuntia dillenii Haw.have the effects of purging fire and removing toxic substances.All the ingredients are mutually compatible, the effects of clearing the heat, moistening the lung, tonifying the spleen, benefiting qi, purging fire and removing toxic substances serve as the therapeutic principles, the function of improving the anoxia endurance is achieved, and the traditional Chinese medicine can prevent and assist in treatment of an anoxic cough, asthma, dyspnea, trachitis, bronchitis, pneumonia, pulmonary emphysema and a pulmonary heart disease.