The invention discloses a retractable folding wing and belongs to the technical field of wing design. The retractable folding wing comprises a first support and a second support which are hinged on one side of a machine body. The end, away from the machine body, of the first support is hinged to the ends, close to the machine body, of a third support and a fourth support, the end, away from the machine body, of the second support is hinged to the end, close to the machine body, of the fourth support, the end, away from the machine body, of the third support is hinged to the end, close to the machine body, of a fifth support, the end, away from the machine body, of the fourth support is hinged to the ends, close to the machine body, of the fifth support and a sixth support, the end, away from the machine body, of the sixth support is connected with the fifth support, the second support is of a retractable structure, the side wall of the second support is hinged to a driving element, andthe driving element is arranged on the machine body. The supports are connected in a hinged mode, one support is controlled to stretch and retract so as to drive other supports to move, and the wingis flexibly stretches and retracted.