The author encountered 36 cases of the cholecystopathy confirmed by the operation or I.V. cholecystography after the plain films of abdomen were taken, and who were admitted through the emergency room at Busan National University and Busan Saint Benedict Hospitals from January 1977 to October 1978. Among them, the author analysed especillay 10 cases of the cholecystopathy showed the gall bladder shadow on the plain films of the abdomen and confirmed by the operation. After then 104 cases of normal persons as a control group were taken the plain film study of the abdomen with the supine and erect positions. The findings obtained through this study were summerized as follows. 1. Among 36 cases of the cholecystopathy, the age distribution was 19 to 77 years of age, and the highest incidence was fifth decade. Sex ratio was equal in distribution. 2. The most prominent symptom was right upper abdominal pain (97.2%). Then came radiating pain, fever, chilling, nausea, vomiting and jau dice in that order. 3. The most common duration of the clinical onset was less 5 days. 4. The radiographic film of plain abdomen showed local meteorism in 91.7%, gall bladder shadow in 47.2%, and radiopaque gall stone, air in gall bladder and air in biliary duct in 2.7%, respectively. 5. In the control group, no gall bladder shadow and air in small intestine were seen on the radiographic films of plain abdomen, but some of the air shadow in hepatic and splenic flexures of colon were found about 90.4% or more. 6. The diameters of the gall bladder shadow showed from 3.5cm to 8.5 cm in width on the radiographic films of plain abdomen. The operative findings showed a severe inflammatory change in the wall of gall bladder, but no gall stone in the smaller cases of the gall bladder shadow. In the larger cases, a single or multiple radiolucent stones in common bile duct or gall bladder, or tumor in common bile duct with inflammatory change in the wall of gall bladder were found. 7. On the p ain film, the gall bladder shadow was found only at the acute stage, for the reason that, in the two cases of the showing gall bladder shadow, the gall bladder shadow could not be shown on the plain film taken after remission of the clinical symptoms, 8. Consequently, the author concluded that the radiographic findings of showing gall bladder shadow and abnormal meteorism in plain films of abdomen could be considered as a key point to diagnose the cholecystopathy in patients of acute abdomen.