In order to improve the accuracy of surgery, we have recently successfully carried out microscopic plasma ablation of sleep apnea syndrome (tonsil melting and adenoids ablation), which is safer and more effective than the original surgical technique. The preliminary summary of plasma ablation of sleep apnea syndrome under microscope (tonsil melting and adenoids ablation) has the following advantages: 1. Clear field of view and anatomical clarity: under the microscope, the field of view is very clear with a magnification of about 10 times. When performing tonsil melting, the tonsils and the tissues around the tonsils can be clearly distinguished, and the operation can be accurately performed at the level of the tonsil peritoneum, so that the surrounding blood vessels can be clearly displayed and damage can be avoided. When performing adenoid ablation, each adenoid flap can be clearly distinguished and removed flap by flap. The adenoid tissue and the mucosa around the posterior nostril can be clearly distinguished when the posterior nostril is near, and the adenoid tissue around the round pillow can also be clearly distinguished to ensure complete removal of adenoids while avoiding damage to the mucosa around the posterior nostril and the round pillow. 2. Reduce intraoperative and postoperative bleeding: Because of the clear anatomy, the surgery can be performed in a clear anatomical gap, and there is almost no bleeding during the operation. Postoperatively, the possibility of bleeding is significantly reduced because of the light damage to the surrounding tissues. 3.Shorten the operation time: Because the operation can be performed in the accurate anatomical gap, there is almost no bleeding, saving the time for hemostasis and reducing the tissue swelling of the child’s mouth, lips and soft palate. 4.Reducing postoperative pain: accurate excision during surgery reduces possible tonsil and adenoid residue and damage to surrounding tissues, and postoperative pain is lighter than surgery under naked eyes. 5.Good surgical results: Because of accurate tissue differentiation, possible tonsil and adenoid tissue residues are avoided, thus avoiding the possibility of postoperative re-growth and achieving better surgical results. 6. Convenience for the operator: Previously, the frontal light was used to perform tonsil surgery, and the doctor’s head had to bear the weight, and the neck would be sore after the surgery when multiple operations were performed continuously. When preparing for surgery, it is necessary to wear a headlamp first, and the wire restricts the operator’s movement before surgery. When performing adenoids surgery, the original endoscope can clearly display but has no three-dimensional feeling, and the operator’s left hand will be sore when holding the mirror for a long time, while microscopic surgery has obvious three-dimensional feeling, and the operator does not need to bear weight and has a better mental state to operate more precisely.