The invention belongs to the technical field of medical equipment, and particularly relates to a burn earmuff for protecting an oxygen tube. The earmuff comprises earmuffs, an arc-shaped head frame, an arc-shaped bracket, the oxygen tube, a sliding block, an air conveying head and a sponge cushion, the earmuffs are connected through the arc-shaped head frame; the air conveying head is mounted on the sliding block; the other end of the oxygen tube is connected with an oxygen bottle; the sponge cushion is mounted on the inner side wall of the arc-shaped head frame and is connected with the sliding block through a string, so that the sponge cushion can be tensioned through the string when the sliding block slides in a sliding groove; through cooperation of the earmuffs, the arc-shaped bracket, the oxygen tube, the sliding block, the air conveying head and the sponge cushion, the oxygen supply effect on a patient is achieved; when the air conveying head slides on the arc-shaped bracket, the sponge cushion is in a tightened state by pulling the string, so that the fixation of the earmuff position is enhanced, the earmuff is prevented from falling off when the patient sleeps and turns over at night, the use effect of the earmuff is enhanced, and the practicability of the earmuff is enhanced.