Objective To explore the feasibility of Chinese medicine syndrome objectification in the acute attack of bronchial asthma. Methods Data collection table for patients with bronchial asthma was designed. Demographic data

symptoms

signs

tongue and pulse manifestation were collected from the outpatient and ward patients of Department of respiration

Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine. Chinese syndromes were classified

and fractional exhaled nitric oxide（ Fe NO） and pulmonary function indexes were detected.Results A total of 334 patients were collected

including 119 cases of wind wheezing

109 cases of heat wheezing

77 cases of cold wheezing

and 29 cases of deficiency wheezing. The deficiency wheezing patients were the oldest.There was significant difference in the age between deficiency wheezing patients and wind

cold and heat wheezing patients（ P < 0. 01）. There was no significant difference in the age among patients with the other syndromes（ P >0. 05）. There was no significant difference in the course of disease and pulmonary function indexes among all the syndromes（ P > 0. 05）. The Fe NO level in wind wheezing patients was the highest. There was significant difference in the Fe NO level between wind wheezing patients and cold

heat and deficiency wheezing patients（ P < 0. 01）. There was significant difference in the distribution of Chinese medicine syndromes in patients with different degree of airway inflammation（ P < 0. 01）. Conclusion The acute attack of bronchial asthma was dominated by wind and heat wheezing. The Fe NO level in wind wheezing patients was the highest. Fe NO may be used as the basis for objectification of bronchial asthma syndrome.