Abstract: A can cover with a stay-on tab, in which it is very easy to insert a finger between the stay-on tab 17 and the upper surface of the can cover. One end and another end of the stay-on tab are respectively inclined upward from the upper surface of the can cover so that there are distances 27, 29 between the one end of the stay-on tab and the upper surface of the can cover 15 and between another end 17b of the-stay-on tab 17 and the upper surface of the can cover 15. The distance 29 between another end 17b of the stay-on tab 17 and the upper surface of the can cover 15 is made larger when the one end 17a of the stay-on tab is pushed downward toward the upper surface of the can cover. The stay-on tab 17 moves like a seesaw.