Balloon catheter dilatation of upper gastrointestinal strictures is an accepted mode of therapy. the authors report the balloon dilatation in 11 consecutive patients. The lesions treated included 10 bengn strictures, and 1 esophageal cancer. Esophageal balloons were ranged form 2mm in diameter, 4cm in length, to 30mm in diameter, 8cm in length. Inflation was held for from 30 to 60 seconds and then repeated two or three times during each session. The balloons were inflated to pressure of form 2 to 12 atmosheres. There were from 1 to 13 dilatations. Two esophageal perforations were occurred in one esophagitis patient and other lye stricture patient. Two perforations were not required any surgical repair. All dilatations were performed without anesthesia. All strictures were responded immediately to dilatation. Prolonged course of treatment were needed with chronic severe esophagitis, lye structure, gastrojejunostomy with chemotherapy, as a result, all patients. except esophageal cancer, could take regular diet after balloon catheter dilatation,. Balloon catheter dilatation of upper gastrointestinal stenosis was effective & safe. It should be considered before other methods of treatment applicable.