Abstract: The lung system mainly includes the lung and its associated organs and tissues including the large intestine, nose, throat, skin, and hair. Through collecting clinical cases of the lung system, the authors referred to the ancient Chinese medical classics and experts' opinions, systematically summarized and standardized the location and nature characteristic symptoms of the disease, and the common basic and compound patterns of the lung system in clinical practice, thus providing a reference for the diagnosis of the disease and syndrome of the lung system.