The methods of endoscopic treatment to a stricture of colon and rectum, are balloon dilatation, stenting, and transanal tube decompression. Balloon dilatation is useful for the stricture with benign disease. It is simple and is considered to be the first choice by the postoperative stricture. To the stricture of Crohn's disease, the long-term prognosis effect equivalent to an operation is shown, and it is the therapy that should be tried before an operation. Stenting should not be performed easily at the present time for benign stenosis because there are problems that must be solved. For malignant stricture, balloon dilatation is contraindication, and transanal tube decompression and stenting are useful to an improvement of decompression and a passage obstacle. Both are useful to postoperative complications, and the improvement of quality-of-life of the stenotic condition by carcinoma.