A capsule endoscope is disclosed. The capsule endoscope includes a shell, a plurality of image capturing units, a positioning unit, and a processing unit. The shell has a containing space. The image capturing units are disposed in the containing space and arranged such that the image capturing units capture images from different angles. The positioning unit is disposed in the containing space for positioning each of the image capturing units. The processing units is disposed in the containing space for acquiring angles of capturing images with the image capturing units according to positioning results of the image capturing units with the positioning unit.