Esophageal foreign body is not uncommon problem among the esophageal disease and it is cured by removal of foreign body under the esophagoscopy in most cases. But it can cause esophageal perforation, periesophageal abscess, mediastinitis, pneumothorax, pyothorax, lung abscess and subcutaneous emphysema, and then may threat the life if early dignosis and prompt management is not carried out. Esophageal perforation can be developed by sharp pieces of metal, bone or long term lodgement of foreign bodies in the esophagus. The authors have experienced a patient with retroesophageal abscess after drawing out the sharp fish bone, and achived a good result by drainage via cervical mediastinotomy with continuous irrigation.