To provide an apparatus for producing ring doughnuts with kinds of different contents although ring doughnuts with no contents are generally found, ring doughnuts with contents are not found.

The apparatus is invented and dramatically advanced as a result of trial and error since in the first place, too much production time is required in production using the fingers of both hands and palms. Productivity is commercially established. While a trial product is made, when dough is collected at a central convex projection to cover filling, the filling is sandwiched between upper and lower dough layers even if only slightly because it also simultaneously moved to have difficulty in adhesion between them. In order to solve the problem: to solve this problem, when a change in structure in which a convex projection top is projected from an outer circumferential wall plane is performed, the filling is not approached and the production operation is totally carried out favorably.