The invention relates to the field of nasal nursing, in particular to a nasal cavity nursing device. The nasal cavity nursing device comprises a supporting piece. A first gear and a second gear are installed on the supporting piece. A first rack meshed with the first gear is arranged at the upper end of the supporting piece. A second rack med with the second gear is arranged at the lower end of the supporting piece. A lead screw is arranged in axle holes of the first gear and the second gear. An internal thread matched with an external thread of the lead screw is arranged on the inner walls of the axle holes of the first gear and the second gear. Hollow circular clamping rings are fixedly installed on the wheel faces of the first gear and the second gear. The clamping rings are coated with an air bag. The air bag coats the end face of the lead screw. A cleaning sponge is detachably connected to the air bag. A wedge-shaped block is rotationally installed on the outer side of the first rack. A water bag is fixedly installed on the supporting piece. The water bag and the air bag are each provided with a plurality of one-way water outlets. The one-way water outlets in the water bag face the clamping rings. The problem that dry thick snot is likely to stuck to the nasal cavity and is not likely to be removed is solved.