In evaluating the esophage-gastric junction, many difficulties are well known in a single contrast study, and it may often be resolved with double contrast technique. By double contrast technique, the special en face view for the esophage-gastric junction was obtained in 298 cases at Inje Medical College Paik Hospital from January, 1981 to June, 1981. Five basic patterns were recognized and classified from type I to V. Their incidences were obtained. - type I; 18%, type II; 50%, type III; 23%, type IV; 7%, type V; 2%. The most common position of patients is left lateral, and zero degree is the most common at elevation of fluoroscopic table. Type III is the most common type of the esophage-gastric junction in inspiration, and type I in expiration. Any significant deviations from these normal geometry of the esophage-gastric junction as displayed by double contrast study, indicate an abnormality. More special attentions are required to evaluate a minute pathologic condition of 3th esophago-gastric junction.