Pulmonary palpation is one of the most important elements of the pulmonary physical examination and is the most basic skill for medical students. Pulmonary palpation examination is rich in content, mainly including the following three aspects: First, thoracic dilatation, that is, to understand the degree of expansion of the thorax, some solid lung changes such as lobar pneumonia or the presence of pleural effusion, can be manifested as a reduction in the mobility of the thorax on the side of the lesion. Second, voice tremor, the use of voice conduction through the lesion site when the change in voice tremor to understand the corresponding parts of the lesion, solid changes in the lung can cause increased voice tremor, while excessive air in the lung or bronchial obstruction or a large number of pneumothorax history, can cause voice tremor weakened or disappeared. Third, pleural friction, when the pleura exists lesions can lead to fibrin deposition on the pleura, causing the pleural surface to become rough, and the wall pleura and dirty pleura rub against each other when breathing, most commonly in acute pleurisy.