Disclosed is a technique for easily obtaining a hollow product. Specifically disclosed is a method for producing a hollow product, which comprised: a film arrangement step wherein a film is arranged on a fiber layer; a molded body arrangement step wherein a molded body having a recess is arranged on the film after the film after the film arrangement step in such a manner that the opening of the recess faces the film; a step of gas evacuation from between the fiber layer and the film, wherein the gas present between the fiber layer and the film is evacuated; a step of gas evacuation from between the film and the molded body, wherein the gas present between the film and the molded body is evacuated; a film-molded body bonding step wherein the film and the molded body are bonded together after the step of gas evacuation from between the film and the molded body; and a fiber layer-film bonding step wherein the fiber layer and the film are bonded together after the step of gas evacuation from between the fiber layer and the film