The microbial distribution on 115 transmitter of telephone in 5 site were studied during the period Mar to May 1996. The result were follows: 1. The public telephone at Kangnam terminal showed highest contamination of total bacteria (1.5 $ imes $ 10$^{4}$/cm$^{2}$ and the telephone at home showed lowest contamination at the mean 4.6/cm$^{2}$ 2. The most frequent bacteria was staphylococcus epidermides and staptylococcus aureus which is pathogen of food poison was frequently isolated. 3. The public telephone at Seoul showed the highest contamination of fungi and the telephone at home showed lowest contamination of Fungi 4. In fungi 631 strains of 16 species were isolated that of highest frequency is confirmed to be Asperillus fumigatus which is pathogen of Aspergillosis, Nigar and Penicillium spp. were frequently isolated.