Noise reduction headphone

The utility model discloses a noise reduction headphone, which comprises left and right receivers and a headband part connected with the left and right receivers, the left and right receivers comprise shells, mainboards, loudspeakers, loudspeaker boards and earmuffs, the shells are connected with the loudspeaker boards to form accommodating cavities, the mainboards are connected with the loudspeakers, the accommodating cavities are used for accommodating the mainboards and the loudspeakers, and the earmuffs are connected with the loudspeakers. The earmuff is arranged on one side, far away from the shell, of the loudspeaker board; circuit board covers and noise reduction units are further arranged on the receivers on the left side and the right side, the circuit board covers are connected and installed on the side, close to the mainboard, of the shell and used for fixing the mainboard between the shell and the circuit board covers, and sealing elements are arranged in installation gaps between the circuit boar