Aspergillus belongs to a kind of fungus, which Aspergillus fumigatus is the main pathogen, Aspergillus is widely present in nature, there are its spores everywhere in the air, especially in the autumn and winter seasons and rainy season, the storage of grain and grass fever, mold will have more Aspergillus. Through the inhalation of spores to the lungs, resulting in real changes in the lungs, cavities, necrosis, the main clinical manifestations of dry cough, chest pain, occasionally hemoptysis, when the lesion is more extensive release will appear shortness of breath, dyspnea, and even respiratory failure. Aspergillus once diagnosed, should be standardized antifungal treatment, the course of treatment according to the condition.