Abstract: The present invention relates to a jig unit for fixing a substrate and a substrate transfer apparatus including the same. In accordance with an embodiment of the present invention, a jig unit for fixing a substrate including: a support part for supporting an edge-side lower portion of a substrate; a hinge part having a hinge formed at a predetermined height from an upper surface of the substrate supported to the support part and rotating so that a rotation range by the hinge applies a force to the edge side of the substrate beyond the range that vertically presses the upper surface of the substrate; and a substrate fixing part for fixing the substrate to the support unit flatly by applying tension to the edge side of the substrate simultaneously with pressing the upper surface of the substrate is provided.