Esophageal dilatation is a safe and effective method for treating esophageal strictures. Most benign esophageal stricture can be successfully dilated with conventional bougienage using mercury weighted Hurst or Maloney dilators. However, when the esophageal lumen narrows to a critical size, generally 12mm, dilatation with the standard bougies is usually inadequate to prevent a recurrence or progression of the stricture or may result in perforation. Nowadays, the balloon catheter has been used to treat severe stricture. We have successfully treated 6 patients with severe esophageal strictures secondary to caustic ingestion. Balloons ranged from 4 to 20mm in diameter and from 20 to 80mm in length. Inflation was maintained for 30 to 60 seconds and then repeated 2 or 3 times during each dilatation. Although three esophageal perforations were occurred in this series, it were treated with conservative management. Our criteria for successful dilatation is the patient's ability to eat a regular diet. All patients were acceptable to regular diet after balloon dilatation. We have experienced successful dilatation of esophageal stricture using balloon catheter and obtained favorable results.