[Annual review of interventional pulmonology (2021)]

In the last decade, interventional pulmonology has developed rapidly, and gradually become a mature subspecialty in modern respiratory medicine, playing a more and more important role in the diagnosis and treatment of respiratory diseases. Especially in recent years, with the development of the related technology, various new technologies of interventional pulmonology came out and are gradually applied to chronic respiratory diseases which were mainly treated with drugs before, greatly expanding the application field of interventional pulmonology. Here, we reviewed the new progress and up-to-date research achievements of interventional pulmonology from 2020 to 2021.