The treatment of sleeping with mouth open and snoring needs to be decided according to the situation, as follows: 1, children sleeping with mouth open and snoring, mostly due to adenoid hypertrophy, with or without tonsillar hypertrophy, usually need to surgically remove the adenoids, accompanied by tonsillar hypertrophy, but also with the removal of enlarged tonsils. 2, for adults sleeping with mouth open and snoring need to carry out sleep apnea monitoring, to determine the nature of sleep disorders, such as central or mixed type, need to wear a ventilator. 3, if it belongs to the obstructive type, usually tonsillar hypertrophy, with or without soft palate collapse, tonsillectomy or palato-pharyngoplasty. If it belongs to the obstructive type, usually tonsil hypertrophy, with or without soft palate collapse, tonsillectomy or palato-pharyngeal plasty is performed.3. If it belongs to the nasal cavity blockage caused by the need to determine the surgical methods according to the situation, such as inferior turbinoplasty, nasal expansion surgery, deviated septum correction, nasal polypectomy, and so on.