The patient, a 15-year-old male, was admitted to the hospital with intermittent hemoptysis for more than 4 months, Case No. 10337932. The patient developed a dry cough with a small amount of white mucous sputum with blood in the sputum in late May 2009 after exercise, which was intermittent, without runny nose, nasal congestion, chills and fever, dyspnea, chest pain and chest tightness. In August 2009, the patient suddenly developed hemoptysis after exercise, with a volume of about 1000 ml (Figure 1), which improved after hemostatic treatment with posterior pituitary gland and hemagglutinin, but he still had blood in the sputum intermittently. Fiberoptic bronchoscopy revealed a localized bulge in the left mucosa of the middle trachea, and a biopsy was performed at the bulge to diagnose “capillary hemangioma”. For further treatment, the patient was admitted to our hospital on September 4, 2009. On admission, there was no obvious deviation of the trachea and no clear local snoring sound. The heart, lungs, abdomen and extremities showed no abnormalities. Routine blood, urine, stool, coagulation, liver function, kidney function, complete set of tuberculosis, and complete set of tumor markers did not show any clear abnormality. On September 10, 2009, an electronic bronchoscopy (model Olympus BF-1T260) was performed under general anesthesia, and a red neoplasm of about 0.7*0.7 cm in size was seen 6 cm above the left anterior bulge of the main trachea, which bled easily when touched. The neoplasm was treated with argon plasma coagulation (APC) (Arbor endoscopy workstation, model VIO200S+APC2, power 40w, argon flow rate 1.8L/min), and the neoplasm shrank significantly after repeated cautery. Two weeks later, the neoplasm disappeared and the mucosa was basically smooth (Figure 2-4). The patient had no further hemoptysis after treatment at the telephone follow-up after one month. Hemangiomas are mostly benign, mostly seen in children, and most of them are congenital developmental malformations, mostly in the skin of the head, neck, limbs and back. It is believed that hemangiomas are mainly treated surgically, but in this case, the hemangioma grew in the middle part of the main trachea, which makes surgery difficult and risky and leaves many postoperative complications. APC is a method of contactless thermal coagulation of tissues using argon plasma gas beam to conduct high-frequency current. The coagulation caused by APC is superficial and mainly applicable to tracheal and bronchial bleeding within the visual range, and also has a certain therapeutic effect on benign and malignant tumors within the visual range. Since this patient had a hemorrhage from a ruptured hemangioma before this operation, we discarded the treatment methods such as intra-tracheal CO2 freezing and laser, which are contacting and prone to hemorrhage from ruptured hemangiomas, and used non-contact APC cautery treatment instead, and achieved satisfactory results, which also provides a new method for minimally invasive treatment of tracheal and bronchial hemangiomas.