One hundred and one cases with allergic rhinitis were statistically analysed, and 40 college students without any allergic symptoms as contrary group were chosen, and prick test and nasal eosinophile count were performed. And the following results were obtained ; 1) Among 101 allergic cases, male and female ratio showed 4 : 5. 2) The 54.5% (55 cases) of allergic group and 15% (6 cases of contrary group showed positive reaction in allergic skin test, but no significant sex difference was found. 3) In 55 allergic positive cases, showed the peak incidence in 4th decade's aged group (27.3%), and next in order were 3rd and 5th decade's aged group (21.8%). 4) Twenty six causative allergens by skin test were verified, and the most frequent allergens were the animal hairs (43.3%) which were dominantly of cat, dog and horse and next in frequency were the pollens (34.7%) and house dust (14.0%). 5) The most sensitive allergic reaction to house dust showed in before 5 years, animal hairs in 6-9 years and pollens in 2nd-3rd decades aged groups. 6) Among 150 positive reactions in 55 patients, (60) was most frequent, and next in order were (58), (26) and (6). 7) The allergic rhinitis due to foods was only 2% which included two cases of mussel and a case of mushroom. 8) Only 27% of the cases with positive skin test showed single allergen, and 73% were multiple allergens. 9) The most common combination of multiple allergens was between a variety of animal hairs, animal hairs and house dust, a variety of pollens and pollens and dust, in order. 10) Among 101 cases of allergic rhinitis, 56.4% (57 cases) showed the nasal eosinophilia and 64.9% (30 cases) of these revealed positive allergic skin test.