An ice-cube complete filling detector and a refrigerator comprising the same comprise a cam, an arm lever rotated by the cam, a detector driving gear rotated by the arm lever, a detector driven gear rotated by the detector driving gear, and an ice-cube detection lever connected to the detector driven gear, so that the detector driven gear is rotated via gear engagement by the detector driving gear and the detector driven gear, and the ice-cube detection lever can be rotated in a large range of about 180 degrees, thereby ensuring high accuracy of detection.