The invention relates to a device for preparing an S-shaped metal beehive, comprising a fixed pole (1) and two groups of forming sections (5) which can be mutually closed section by section to form asection mould, wherein, two coaxial fixed rods (4) are arranged on the top of the fixed pole (1). The invention is characterized in that: each group of forming sections (5) consist of at least three sections; a chain structure is hinged between each section by utilization of a pin pole; the forming sections (5) can be gradually deformed from a straight line or a curve with small curvature to a curve with large curvature; the two groups of forming sections (5) are closed to form the section mould the cross section of which is round, obround or elliptical. Due to adoption of the technical proposal, the metal stack fixed rods (namely the S-shaped center) are immobile during the rolling process; corrugated tooth profiles can be straightened by the sectional closed section mould during the rotation process even an inner core material piece is slightly longer, and residual tooth profiles can be straightened into flat sheets and then attached to the circumference of an inner core of the beehive; moreover, an S-shaped central tooth profile is always immobile and then can not be deformed, thereby the forming quality and the finished product rate are improved.