With the progress of science and technology and the continuous improvement of medical level, electronic bronchoscopy as a routine examination has been widely used in clinical practice, which has greatly improved the diagnostic efficiency and treatment level of various lung diseases. However, because traditional bronchoscopy is more painful under local anesthesia, many patients “prefer to die rather than do it”, which delays the best time for diagnosis and treatment. With the development of science and technology, the technology of bronchoscopy has been further developed, and our department has also introduced several kinds of more sophisticated bronchoscopy equipment and carried out more acceptable painless bronchoscopy technology, and after a period of clinical application, it has really reflected their advantages. First of all, based on the ordinary standard equipped bronchoscope, our department has introduced ultra-fine bronchoscope and fluorescent bronchoscope . 1.Olympus260(BF-XP260F): It is the only ultra-fine bronchoscope in the Olympus electronic bronchoscope series. Its outer diameter of 2, 8mm, and has 1, 2mm tube inner diameter, is a CCD after the composite fiber optic bronchoscope placed in the handle. The narrow diameter of this mirror can explore the lesions in the distal airway; the operation process is also less painful for the patient. 2, Olympus260 (BF-F260): fluorescence tracheoscope, outer diameter 5, 5mm, than the traditional standard BF-240 outer diameter is thin, its tube inner diameter still maintains up to 2, 0mm, because of its new CCD, the image is also clear enough, its application range is very wide, in terms of diagnosis, because of its with fluorescence function (normal mucosa is green, malignant lesion mucosa In terms of diagnosis, because of its fluorescence function (green for normal mucosa and magenta for malignant lesions), when the tumor invades early and has not yet invaded the muscular layer of the airway, although no obvious lesion is seen in the lumen under ordinary tracheoscopy, the fluorescence may already show abnormalities, which is more conducive to the early characterization and diagnosis of malignant tumors. Secondly, we are also the first to carry out painless bronchoscopy in terms of operation method. In foreign countries, painless bronchoscopy has been carried out for many years and is very mature. However, due to the risk of general anesthesia and the need for anesthesiologists to cooperate with this operation, it is less carried out in China. Our department introduced advanced painless bronchoscopy method from Chang Gung Hospital in Taiwan, which reduces the pain of patients during the examination, while the doctors are more convenient in the operation, the operation process is faster, and the additional pharyngeal injury caused by the patient’s intolerance and antagonism is greatly reduced.