We analysed 48 patients with intraabdominal tuberculosis and treated at the Department of General Surgery, National Medical Center, from January 1985 to December. We evaluated the efficiency of diagnostic modalities for intraabdominal tuberculosis and provided the guideline for therapeutic trials. The ratio of male to female was 1: 1.1. The peak inciodence were the second(27.1%) and third decades(22.9%). The frequent symptoms were abdominal pain (75%), nausea and vom- iting(33.3%), and abdominal mass(25.0%). The duration of symptom was within 1 month (77.1%) mostly. Twenty two cases (45.8%) were associated with pulmonary tuberculosis,' other 3 cases extrapulmonary tuberculosis. In the AFB smears of ascites, 2 cases(13.3%) showed positive reaction. The correct preoperative diagnosis was possible in 23 cases(64.9% ). Thirty six cases(75.0%) needed operation '. 20 cases(55.5%) received emergency operation and the other elective operations. The major operative procedures were right hemicolectomy (22.8%) and segmental rescetion of small bowels(22.8%). The frequent operative findings were tuberculous mesenteric lymphadenopathy(52.8%), adhesion(38.9%), intestinal perfora- tion(25.0%), ascites(22.2%). The postoperative complications including wound infections, pneumonia and enterocutaneous fistula were occurred in 11 cases(31.6%). Other 12 cases were not operated and took antituberculous medications, and improved symptomatically. We suggests that intraabdominal tuberculosis should be differentiated from various surgical abdo- men with vague symptoms or signs, especially in young patient. We recommend antituberculous medications in suspicious case. In complicated cases, emergency operations such as intestinal resection or enterostomy should be performed.(Korean J Gastroenterol 1994; 26: 1021-1028)