The invention aims to provide a curing and conveying device for a 3D (three-dimensional) food printer and mainly solves problems that existing 3D food printers cannot cure food while printing the food, materials are difficult to convey and the like. The curing and conveying device for the 3D food printer comprises a casing, a conveying mechanism and a heating structure, wherein feeding ports and a discharging port are arranged on the casing; the conveying mechanism is used for conveying materials entering the casing via the feeding ports to the discharging port for outputting; the heating structure is used for heating the materials in the casing so as to cure the materials. According to the curing and conveying device for the 3D food printer, the materials are heated by the heating structure to be cured while being conveyed by the conveying mechanism, the device is simple in structure and easy to minimize, cured food can be obtained immediately and continuously, so that the food is cured while being printed, and the problem that the existing 3D food printers can only perform forming instead of curing or post-curing as required is solved.