Laparotomy was performed for resection of hepatoma in 34 cases at Seoul National University Hospital for 3$frac{1}{2}$ years since Oct. 1978. Resection of hepatoma was done in 21 cases, ligation with or without cannulation of hepatic artery was performed in 12 cases, and open and closure was made in 1 case. Angiographic findings were analyzed for resectability of hepatoma. The results of the analysis were as follows: 1. Most reliable signs for resectable hapatoma were peripheral location and confinement in one hepatic lobe. Most reliable signs for non-resectable hapatoma were presence of tumor thrombus in portal vein, bilateral hepatic arterial feeding. 2. Less reliable signs for resectable hapatoma were absence of portal vein invasion, less than 10cm in size and absence of findings of liver cirrhosis. Less reliable signs for non-resectable hapatoma were right or left massive type. 3. Presence of arteriovenous fistula, more than 10cm in size, and presence of findings of liver cirrhosis were no reliable criteria for resectability of hepatoma. 4. Predictability for resectability with those reliable signs of angiography was around 80%. 5. In addition to routine celiac angiography, oblique celiac angiography or superior mesenteric arteriography for portal vein opacification will be helpful in order to obtain highly reliable signs for resectability of hepatoma.