Objective To explore the clinical diagnostic value of transbronchial cryobiopsy (TBCB) for lung diseases. Methods All patients who underwent TBCB in the bronchoscopy room of West China Hospital, Sichuan University from November 5, 2020 to August 7, 2024 were consecutively included. Clinical information of the patients was collected, and the distribution of pathological diagnosis, clinical diagnosis, and the consistency between the two were statistically analyzed. The distribution of diagnosis and the consistency with pathological diagnosis of interstitial lung disease (ILD) were analyzed. The distribution of diagnosis of patients who underwent more than two lung biopsies was summarized. Results A total of 351 TBCB patients were included. The concordance rate between the overall pathological diagnosis and the clinical diagnosis was 68.66%. Among 351 patients who underwent TBCB, 199 cases were diagnosed as ILD by pathological diagnosis, and the consistency rate with the clinical diagnosis was 90.45%. 22 cases were pathologically suggested or suspected of tumor by pathology, and the final consistency rate with clinical diagnosis was 95.45%. Descriptive pathological conclusions were found in 74 cases. The clinical diagnosis of ILD was 255 cases, and the diagnostic rate of TBCB was 71.76%. 83 cases of immune-related ILD (diagnostic rate 83.13%); 75 cases of idiopathic interstitial pneumonia (diagnostic rate 44.00%). There were 59 cases of ILD with cysts and/or air spaces (diagnostic rate 83.05%). 33 cases of exposion-associated ILD (diagnostic rate 81.82%); 5 cases of pulmonary sarcoidosis (diagnostic rate 100.00%). Among them, 28 patients underwent lung biopsy more than twice, and the disease distribution was mainly ILD. ConclusionTBCB has significant value in the auxiliary clinical diagnosis of lung diseases, especially interstitial lung diseases, with the greatest advantages in the auxiliary diagnosis of pulmonary alveolar proteinosis, tumors, and idiopathicinterstitial pneumonia.