Achalasia is defined as a motor disorder of I he esophageal smooth muscle in which the lower esophageal sphincter does not relax properly with swallowing and the normal peristalsis of the esophageal body is replaced by abnormal contractions. The definite etiology is unknown. The incident is infrequent. The diagnosis of achalasia was established by clinical, radiological investigation, and manometric data. The management of achalasia consists of conservative treatment, dilation and surgical treatment. Esophageal dilation is the technique used to stretch open the blocked portion of the esophagus. Balloon dilation is a form of definite treatment beside myotomy or Heller's operation. We hereby report a case managed by balloon dilation catheter after failure by means of conservative treatment.