The present invention differs from the conventional orthodontic device in which the palate, the nasal septum, and the nasal cavity are widened in the left and right direction. Related to the device. Specifically, a body 10 attached to the bottom surface of the gums of the upper jaw; a connecting leg 20 having one end connected to and extending from the body 10; And a ring portion 40 connected to one side of the lower surface of the body 10. The body 10 is divided into a first body 11 and a second body 12, and the first body 11 and the second body 12 is an upper orthodontic device in which the distance is adjusted by being separated or approached in the direction of the anterior teeth and the airway of the upper jaw.
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