Cold stimulation is known to induce nasal obstruction and accelerate the degree of nasal symptoms in patients with allergic rhinitis. The purpose of this study is to evaluate nasal mucosal response to temperature stimulation in patients with allergic rhinitis, by means of nasal airway resistance(NAR). The subjects are 15 patients with allergic rhinitis and 30 healthy adults. For caloric stimulation, nasal vestibule was stimulated with Copper stick of different temperature, feet with water of different temperature in Paraffin heater, i.e., 22, 43, 0 centigrade for one minute. NAR was measured before stimulation, and 2, 15, 30 min after stimulation by STD Rhino KOC-8900(Chest Co. Japan) rhinomanometry with anterior active method. The change of NAR after each stimulation on nasal vestibule was greater than that on feet in both groups. NAR was increased after cold stimulation on nasal vestibule in both groups(p<0.05). The rate of change in NAR after cold stimulation on nasal vestibule in allergic rhinitis was more steep than in control(p<0.05). This results suggest that the patients with allergic rhinitis has hypersensitivity of nasal mucosa to cold temperature especially because of antigen-antibody reaction.