A spinning forming device comprising: a rotating shaft that rotates a plate to be formed; a processing tool that presses a transform target portion of the plate to transform the plate; a rear-side heater disposed at an opposite side from the processing tool across the plate, that locally heats the transform target portion by induction heating and includes an electric conducting pipe, the electric conducting pipe including a coil portion, the coil portion extending in a circumferential direction of the rotating shaft and having a doubled circular-arc shape facing the plate; a front-side heater disposed at a same side as the processing tool relative to the plate, that locally heats the transform target portion by induction heating and includes an electric conducting pipe, the electric conducting pipe including a coil portion, the coil portion extending in the circumferential direction of the rotating shaft and having a doubled circular-arc shape facing the plate; a heat station including a pair of connection boxes (61, 62) electrically connected to the electric conducting pipe of the rear-side heater and the electric conducting pipe of the front-side heater and communicating with the electric conducting pipe of the rear-side heater and the electric conducting pipe of the front-side heater; and a circulating device that supplies a cooling liquid to one of the pair of connection boxes (61, 62) and recovers the cooling liquid from the other to circulate the cooling liquid through the electric conducting pipe of the rear-side heater and the electric conducting pipe of the front-side heater, wherein the heat station is configured such that: a current flows through the electric conducting pipe of the front-side heater and the electric conducting pipe of the rear-side heater in series, and the cooling liquid flows through the electric conducting pipe of the front-side heater and the electric conducting pipe of the rear-side heater in parallel. a rotating shaft that rotates a plate to be formed; a processing tool that presses a transform target portion of the plate to transform the plate; a rear-side heater disposed at an opposite side from the processing tool across the plate, that locally heats the transform target portion by induction heating and includes an electric conducting pipe, the electric conducting pipe including a coil portion, the coil portion extending in a circumferential direction of the rotating shaft and having a doubled circular-arc shape facing the plate; a front-side heater disposed at a same side as the processing tool relative to the plate, that locally heats the transform target portion by induction heating and includes an electric conducting pipe, the electric conducting pipe including a coil portion, the coil portion extending in the circumferential direction of the rotating shaft and having a doubled circular-arc shape facing the plate; a heat station including a pair of connection boxes (61, 62) electrically connected to the electric conducting pipe of the rear-side heater and the electric conducting pipe of the front-side heater and communicating with the electric conducting pipe of the rear-side heater and the electric conducting pipe of the front-side heater; and a circulating device that supplies a cooling liquid to one of the pair of connection boxes (61, 62) and recovers the cooling liquid from the other to circulate the cooling liquid through the electric conducting pipe of the rear-side heater and the electric conducting pipe of the front-side heater, wherein the heat station is configured such that: a current flows through the electric conducting pipe of the front-side heater and the electric conducting pipe of the rear-side heater in series, and the cooling liquid flows through the electric conducting pipe of the front-side heater and the electric conducting pipe of the rear-side heater in parallel.