A bowleg correction device 1 includes a pair of left and right foot mounting units 10 configured to respectively mount user feet from upper surface sides thereof and rotating portions 20 respectively fixed to the foot mounting units 10, each of which has at least a part protruded from a lower surface side of the corresponding foot mounting unit 10, wherein each of the rotating portions 20 includes: a fixed portion 21 fixed to the corresponding foot mounting unit 10 and a shaft portion 22 rotatably engaged with the fixed portion 21, extending in a vertical direction and having a floor-contacting surface 22a which contacts a floor at a position that is protruded from a bottom surface 12a of the foot mounting unit 10, and when the foot mounting unit 10 is rotated around the shaft portion 22 in a direction, a returning force is generated in the opposite direction.