The present invention relates to a posture correcting device, and more particularly, to a base plate that performs a hinge motion in response to an external force and has an elastic restoring force against the hinge motion, and an elasticity that elastically moves in an oblique direction in response to a force applied from the base plate. It comprises a motion coupling module and a housing that forms a movement path of the elastic motion coupling module, and not only can strengthen the muscles near the cervical spine of the user, but also relates to a posture correction device that can correct the user's motion posture more correctly .
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