Pulmonary angiography is an important invasive diagnostic technique for pulmonary vascular diseases. With the development of pulmonary vascular interventions, pulmonary angiography has been applied more frequently. We focused on the history of pulmonary angiography, anatomy of pulmonary artery, the indications and contraindications of pulmonary angiography, preoperative preparation, operating procedures, the interpretation of pulmonary angiography results and the prevention and management of complications, with the aim of standardizing the operating procedures of pulmonary angiography and improving the diagnosis of pulmonary vascular diseases.