This article provides information on the incidence, localization and pathomorphology of pulmonary chondromatous hamartoma. As a material Republican Pathological Anatomy Center of the Ministry of Health of the Republic of Uzbekistan biopsy diagnosis in the room during the last 10 from inspection won 24 hamartomas from biopsies condition separate receive. It was found that 13.4% of chondromatous hamartomas of the respiratory system were located in the walls of large bronchi, 56.2% in the front segments of the lungs, and the rest in the back cells of the lungs (30.2%). It was found that the hamartoma developed in the wall of the large bronchi consists of multifocal and irregularly located chondromatous tissue nodules, and around them, the soft tissues of the bronchial wall and the mucous membrane have grown in a disregenerative manner. It was observed that in the hamartoma developed from the bronchi in the lung tissue, chondromatous foci appeared both in the wall of the bronchi and in the alveolar tissue.