Disclosed herein is a glove shaping device for heating and shaping the wrinkled and sewn portions of a glove. The glove shaping device includes a plurality of heating plates to be inserted into the finger portions of the glove. A body portion is provided in its interior with an electric heater and joint depressions in its top portion. A cover is attached to the heating plates and the body portion. Each of the heating plates is formed to have a rhomboid sectional shape, a predetermined thickness, two parallel side surfaces each inclined at a predetermined angle, and a joint prominence corresponding to a joint depression in a body portion.