This review article deals with the clinical value of capsule endoscopy for visualization of the colon. Since its introduction in 2006, the colon capsule endoscopy underwent major technological improvements. The improved performance of colon capsule endoscopy is reviewed based on three multicenter prospective studies. Screening patients for colonic adenomatous polyps is reasonable in patients who are unwilling to undergo conventional colonoscopy. Another prospective study proved that colon capsule endoscopy is effective in incomplete colonoscopy. Colon capsule endoscopy was shown to be superior to virtual colonography in the evaluation of patients with incomplete colonoscopy. Further improvements are expected in colon capsule endoscopy.