목적: Allergy skin prick test is widely used to demonstrate an IgE- mediated allergic reaction of the skin. It is a useful diagnostic tool in determining specific allergy towards aerosol, contact or food allergens in atopic individuals. This study was carried out to determine the prevalence of sensitization to common allergens among the patient who attended allergy clinic in ORL Department Hospital Ampang. 방법:Patient aged 10 years and above under ORL clinic follow up for allergic rhinitis, were sent for allergy skin prick testing (SPT). Patients underwent SPT from January 2009 till December 2012 were included in the study. Two sets of allergens were used in our centre GERMAX which is commercially available and allergens from Institute of Medical Research (IMR), which was extract of local allergens. The allergens that were used in the SPT in our centre were aeroallergens, food allergens and contact allergens. The data were collected and analysis of age of the patients, gender, racial distributions and sensitization were done. 결과:A total number to 239 patients attended SPT from January 2009 till December 2012. Ninety five point eight percent of patients showed positive SPT result. The male to female ratio was 11.5. A total of 802 sensitizations were noted with 56.98% sensitized to aeroallergen, 42.39% and 0.63% sensitized to food and contact allergen respectively. The commonest aeroallergens sensitized in this study were Dermatophagoides farinae (34.8%), followed by Blomia tropicalis (32.6%). Prawn (17.94%) and crab (17.05%) were the commonest food allergen sensitized. 결론:Sensitization to aeroallergen is common compared to the food and contact allergen. Perhaps this data will represent the most common allergen sensitization in urban area with house dust mites represent the commonest allergen sensitized