Abstract: By skin prick test, three kinds of mite allergens （Dermatophagoides pteronyssinus， Dermatophagoides farinae， Blomia tropicalis） were tested in a group of asthma children in Jinhua area from Oct 2005 to Sep 2006. The pos-rate to allergen from D. pteronyssinus and D. farinae was 80.6% and 77.8% respectively, higher than that of Blomia tropicalis （61.1%） （χ²=21.39， P<0.05）. Cases positive to Blomia tropicalis allergen showed 100% and 95.9% positive reac-tion to D. pteronyssinus and D. farinae repectively. The results demonstrated that the important allergens for children′s asthma are from D. pteronyssinus and D. farinae, while the Blomia tropicalis allergen is supposed to have cross-reactivity with the former two mite allergens.

Key words: Child, Asthma, Mite allergen, Skin prick test