Objective: To investigate the traditional Chinese medicine (TCM)constitution types of the patients with acute exacerbation of chronic obstructive pulmonary disease(COPD)with secondary pulmonary fungal infections (AECOPD)

analyse the internal relativity

and discuss the ways and means of preventing and treating secondary pulmonary fungal infections

so as to provide basis for applying the TCM in preventing and treating secondary pulmonary fungal infections. Method: A retrospective study was performed in 365 AECOPD patients and their TCM constitution types were determined. Result: A total of 63 patients in 365 AECOPD patients were infected by secondary pulmonary fungi. Among the 63 cases

21 cases(33.33%) were qi-deficiency type;15 cases(23.81%) were phlegm-wetness type;9 cases(14.29%) were yang-deciency type;7 cases(11.11%) were wet-heat type;5 cases(7.9%) were blood-stasis type;4 cases(6.35%) were yin-deciency type;2 cases(3.17%) were qi-depression type. Conclusion: The qi-deficiency type patients are more likely to be infected with secondary pulmonary fungi than other types' patients because of Zang and Fu Organ hypofunction.