Abstract: The present invention discloses a movable bucket and a matching fixed bucket used in an ice-cream machine, and an ice-cream machine equipped with said movable bucket and matching fixed bucket, wherein the movable bucket and the matching fixed bucket are made of a heat-transferable material, the matching fixed bucket is refrigerated when the ice-cream machine works, the movable bucket accommodates materials for making ice cream and is put into the matching fixed bucket when making ice cream, and wherein the outer wall of the movable bucket and the inner wall of the matching fixed bucket have a same slope above zero, so that the outer wall of the movable bucket and the inner wall of the matching fixed bucket can be in well contact.