There has been a trend to increase interests in allergic rhinitis as development of immunology and a lot of researches have been performed to various aspects to the disease. Various kinds of diagnostic procedures are available, which include history taking, physical examination, X-ray, eosinophil in nasal secretion, blood eosinophil count, serum IgE level, skin test, nasal provocation test and RAST. In order to get basic clinical information of the disease, the authors performed clinical analysis with 624 cases who diagnosed as nasal allergy at allergic clinic of Department of Otolaryngology, Kyung Hee University Hospital during the period between May 1986 to Dec. 1987. The results obtained were as follows ; 1) The ratio between male and female was 1.1 : 1 The most probable age incidence for male was 1-19 and for female 20-34 years. 2) Predominant symptoms were nasal obstruction, watery nasal discharge and sneezing. These symptoms were usually developed with paroxysmal pattern and were found to occur most frequently in the morning. 3) The severity of symptom was not correlated to nasal mucosa findings, PNS X-ray finding and peripheral eosinophil count. 4) The allergens most frequently found are House Dust and House Dust Mite. 5) Nasal provocation test was useful in detection of allergen to the patient sensitized to House Dust and/or House Dust Mite.