To improve the quality of a molding and the productivity of a bottle production apparatus.

The apparatus has a preform molding machine 11 for molding a preform, a preform unloading device for unloading the preform from the mold device 13 of the molding machine 11, a conveyance device which conveys the preform taken out from the mold device 13 and cools the preform to room temperature while it is conveyed, and a blow molding machine 41 for heating and blow-molding the preform. Since the preform taken out from the mold device 13 is cooled to room temperature while being conveyed by the conveyance device, the generation of stress in the preform can be prevented.