There is a tendency to increase the fungal infections, due to the phenomenon of antibiotics, over use of the steroid hormon, radiation therapy and the air pollution, which has presented many difficult problems in otolaryngological field. This study was designed to investigate the distribution of normal fungal flora in the external auditory canal, nose, pharynx and mouth. Authors obtained following conclusions through 327 persons who are not ill due to otolaryngological diseases and did not overuse antibiotics, during April of 1974 to June of 1974. 1) There is a tendency to increase the normal fungal flora in the external auditory canal, nose, pharynx, and mouth than the reports of past ten years. 2) The distribution rate of fungal flora is as follows. Nose : 59.5%, External auditory canal : 22.7%, Pharynx :15.9%, Mouth : 13.1%. 3) 18 genera were obtained from the normal external auditory canal, nose, pharynx and mouth, and the fungi frequently encountered with Aspergillus, Penicillium, Cladosporium and Alternaria. Candida was found very often in the pharynx and mouth, but rarely in the nose and external auditory canal. 4) One case of Isaria was isolated from the nose.