The invention discloses a special-shaped blank heating device with uniform temperature distribution. The special-shaped blank heating device comprises two oppositely-arranged copper electrodes, wherein a special-shaped blank is clamped between the copper electrodes; the copper electrodes are connected with two poles of an adjustable direct-current power supply respectively; the two copper electrodes and the special-shaped blank form a closed loop; and one or more induction coils are arranged around the special-shaped blank, and the induction coils are connected with an adjustable alternating current power supply. By virtue of the special-shaped blank heating device, uniform temperature distribution can be rapidly achieved on blanks with uneven cross sectional areas; the heating device is used in electric conduction heating and induction heating in a matched manner; the center part is heated by electric conduction heating, the outer parts of different cross sectional areas are heated byinduction heating of alternating current with different frequencies; and the structure is simple, the operation is convenient, the size of the device can be adjusted according to the size of the blank, so that high universality is achieved.