Fungal infections of the lungs are bronchopulmonary diseases caused by fungal infections. There are many types of fungi, and they can usually be treated effectively with the appropriate medication after clarifying the pathogen. The common infectious agents of pulmonary fungi are Candida, Aspergillus, Cryptococcus, Pneumocystis, etc. Different fungal infections have different characteristics, and differential diagnosis can be made based on lung X-ray, sputum and bronchial secretion culture, and clinical manifestations. Common antifungal drugs include fluconazole, itraconazole, amphotericin B, compound sulfamethoxazole and so on. With reasonable treatment, it is usually curable. Eighty-year-olds with fungal infections of the lungs need to actively seek medical attention and follow the doctor’s instructions for reasonable treatment. The above drugs should be used under the guidance of a physician.