The total 223 cases of tetralogy of Fallot is analysed angiographically, in which selective biplane cinecardioangiography with axial projection has been done at the Department of Radiology, Seoul National University Hospital, in recent 2 year and 4 months, with specific refrence to the location of pulmonic stenosis, and associated cardiac anomalies. The summary of the analysis is as follow; 1. Left ventriculogram (long axial oblique view) was necessary to detect the ventricular septal defects including anterior marginal VSD, and was helpful to identify the coronary artery anatomy and presence of PDA and evaluate the size of left ventricle. 2. Right ventriculogram (elongated RAO view) was the best projection for the demonstration of pulmonic infundibulum and was essential to differenciate and localize the ventricular septal defects. 3. In the right ventriculogram (4 chamber view), well demonstrated the right ventricular outflow tract, pulmonary valve, and pulmonary arteries (ma n, right, left and peripheral), and also perimitted the detection of ASD in levophase. 4. The position of ventricular septal defects was perimembranous in 199 cases (89.2%0, subarterial in 75 cases (6.8%), and infundibular (intracristal) in 9 cases (4%0. Multiple vintircular septal defects(perimem-branous & marginal) were found in 11 cases (4.5%) 5. In 35 cases (15.5%), pulmonary stenosis is found only in pulmonary infundibulum. The combination of its components was most commonly anterior wall and conus septum hypertrophy in 24 cases (68.6%). 6. Combined pulmonary stenosis was identified in 188 cases (84.3%). The most common combination was infundibular and pulmonary valvular stenosis in 56 cases (29.8%0. 7. Associated cardiac anomalies were right aortic arch in 53 cases (23.8%0, persistent left SVC in 17 cases (7.7%0, ASD in 13 cases (5.9%), PDA in 9 cases (4.1%), aberrant subclavian artery in 5 cases (2.2%0, IVC interruption with azygos continuation in 2 cases, single coronary arte y in 2 cases, and anterior descending artery from right coronary artery in 1 cases, etc. 8. Selective biplane cinecardioangiography with axial projection is essential to evaluate the size of left ventricle and to localize the ventricular septal defects and pulmonary stenosis, and to detect associated cardiac anomalies in T.O.F. Sometimes aortography is necessary when anomaly of coronary arteries is suspected.