Tubular adenoma of the colon is a common benign tumor of the gastrointestinal tract that is well treated. Tubular adenoma is the most common type of colonic adenoma. Most of them are round, oval, smooth or lobed, pink or dark red, soft and elevated on the surface of colonic mucosa. As the tumor increases in size, the texture becomes solid and can be tipped or broad-based, and the tumor can grow to a few millimeters to several centimeters. As the size of adenoma increases, the chance of malignant transformation gradually increases, and when the diameter of adenoma is >2cm, the cancer rate increases significantly. If adenoma cells show obvious pleomorphism and interstitial infiltration, it is called severe atypical hyperplasia or carcinoma. Once found, colonic adenomas should be removed in principle. Smaller colonic adenomas can be removed endoscopically, while slightly larger polyps can be removed endoscopically, or endoscopically by electrocautery, or endoscopic mucosal resection. If the tumor is large and has a wide base, endoscopic removal is difficult or bleeding is perforated, surgical excision can be performed. Regardless of which treatment is used, regular review is required. Tubular adenoma of the colon lies in early detection, proper examination and management, all of which can lead to good treatment results.