Chronic tonsillitis, tonsillar hypertrophy, and adenoid hypertrophy are common diseases in children and adolescents, and they are one of the problems that parents face. However, the use of low-temperature plasma has solved the above problems. You may be confused what is low-temperature plasma technology? The following is an explanation of the following: the city’s first introduction of U.S. low-temperature plasma technology equipment, first of all, to introduce what is “low-temperature plasma”? Lightning, neon, plasma TV, etc. are all plasma phenomena and technologies that people can feel every day. As a new branch of modern physics, “plasma” has been widely used in many fields such as medicine, electronics, industry, military, and daily life. The principle of minimally invasive low-temperature plasma technology is to use the energy of low-temperature plasma radiofrequency to ablate the tonsils and adenoids at a low temperature of about 40 degrees in order to restore the normal ventilation of the pharyngeal cavity. In addition, the technique is based on endoscopic treatment, which magnifies the diseased tissues hundreds of times, making the surgical field clearer and the operation simpler and more precise, ensuring the safety of the operation and reducing the risk. The removal of tonsils and adenoids in 30 cases of children received good results. Its unique advantages are: 1. this treatment is less damaging, professional and reliable; 2. it is effective and obvious; 3. it shortens the period of recovery and quick recovery; 4. there are no after-effects. Sinus endoscopy for sinusitis, deviated nasal septum and supported laryngoscopy for vocal cord diseases Nasal congestion, headache and hoarseness have become one of the headache problems that plague most people. To solve these problems, our department has introduced multifunctional sinus endoscope and supporting laryngoscope, and has successfully completed the treatment of 40 cases of rhinosinusitis, sinusitis, deviated septum, vocal cord polyps, etc. This procedure has a small wound, less chance of infection, and can be discharged for normal life three days after surgery.