The utility model provides a department of anesthesia is with multichannel pars oralis pharyngis air -breather, take one including the constraint, fixed cover, the connecting pipe, the constraint takes two, fixed plate and air duct, still include the bed course, go out the fog hole, the inlet tube, the hole of charging, public thread gluing, the tongue depressor, recess and female thread gluing, the both ends symmetry of fixed cover is equipped with the constraint and takes one to take two with the constraint, internal surface at fixed cover is equipped with the bed course, its middle part is equipped with the connecting pipe, even there is the inlet tube lower part of connecting pipe, its inside air duct that is equipped with, the air duct passes through the recess and links to each other with the tongue depressor, take one to take two outer end to be equipped with female thread gluing and public thread gluing respectively with the constraint in the constraint. The beneficial effects of the utility model are that: the patient who executes the anesthesia art for the department of anesthesia that not only can be stable forms the pars oralis pharyngis passageway of ventilating, can go on such as gastric tube insertion moreover under same device, inhale operation such as phlegm, and labour saving and time saving, its structural design accord with human oral cavity environment and can carry out the humidification to the air that lets in, improve the comfort of patient's use.