The invention discloses a manual nasal cavity stimulation device, and relates to the field of medical health care. The manual nasal cavity stimulation device aims at the technical problems that duringthe air suction by using the existing nasal aspirator, the contrary to the baby breath easily occurs, the baby discomfort can be caused, the baby persistently cries, or even gets injured through theviolent resistance of the baby when a suck-out device is in contact with the nose of the baby. A connecting rod is arranged on a handle, and is connected with a bearing arranged in a rotating body; soft hair is arranged at the lower end of the rotating body; the rotating body can freely rotate relative to the handle. In the use process, the hand holds the handle, and puts the soft hair into the nares of the baby; then, the rotating body is slightly rotated so that the rotating body drives the soft hair to rotate; therefore the baby nasal cavity is stimulated, and the sternutation is caused forfinally achieving the goal of discharging out snot. The manual nasal cavity stimulation device has the advantages that the structure is simple; the effect is obvious; the nasal cavity of the baby canbe effectively stimulated; the self ability is used for discharging out the snot without injury on the baby. The manual nasal cavity stimulation device has wide market prospects.