Abstract: To Explore the realationship of the kind、amount、season distribution of the common pollen sensitizing and allergic rhinitis we use graritational measure method,to surveye the pollen sensitizing of air in ZiBo city with a year,we exposed 365 pieces one year and found out pollen 10898 grains,all of 36 aceae.The fluttered pollen were seen one year and had two peak.It was 3-5 months and 7-9 months.The principal pollen sensitizing in ZiBo city was Artemisia Humulus、Platanus and Populus etc.Using pollen sensitizing antigen,We carried on 376 allergic rhinitis patients with intradermal test.The positive rate was 74.5% and that of controls was 9.7%(P<0.01).With pollen antigen specificly immune treat 86 patients of allergic rhinitis,the rate of clinical control was 76.7% and that of controls was 24.0%(P<0.01).The study revealed that airborne pollen sensitizing was the main cause of allergic rhinitis and the peak of fluttered pollen was consistent with the season of allergic rhinitis.The pollen antigen was the specific immunotherapy.