Tuberculosis is an infectious disease caused by the mycobacterium tuberculosis. Tuberculosis of the oral cavity is usually secondary to pulmonary tuberculosis but may be the site of a primary infection occasionally. The authors experienced two cases of tuberculosis ; the primary tuberculosis involving right inferior turbinate and nasal vestible in a 56-years-old female and tuberculosis of tongue tip secondary to the moderately advanced pulmonary tuberculosis in 56-years-old male.