The reconstruction of oral and maxillofacial defects has transitioned from shape recovery to a high degree of uniformity in shape recovery and function recovery, which means that higher requirements for the choice of reconstruction methods and the skills of clinicians are demanded. In the late 1970s and early 1980s, myocutaneous flaps were used to reconstruct larger defects and close the dead space or wounds because of their sufficient blood supply and large tissue volume, and became the main method for reconstructing large soft tissue defects. The myocutaneous flap, however, also has obvious drawbacks, including: (1) The tissue volume is large, such as pectoralis major myocutaneous flap and latissimus dorsi flap. The flap will be bloated after reconstruction and is less accurate, which directly affects the appearance and function of the reconstructed areas. (2) The removal of muscle tissue has severe damage to the donor site, characterized by dysfunction or functional incapacitation. (3) Fascial flaps, such as the anterolateral thigh flap, need to carry deep fascia and full-thickness fat, so the great thickness of the flap will affect the appearance and function as well. (4) The muscle will atrophy to varying degrees after the myocutaneous flap transplantation, affecting the final reconstruction effect. The appearance of the forearm flap can be regarded as an innovation in the history of plastic and reconstructive surgery [1]. With a soft texture, constant vascular anatomy, relatively simple preparation, no muscle tissue, and moderate thickness, the flap is widely used in the reconstruction of oral and maxillofacial defects. However, the main blood vessels are damaged during the preparation of the flap, and the surgical incision is closed by abdominal skin grafting, resulting in poor postoperative appearance and function of the donor site. The limitations of traditional flaps have forced us to think about and seek a new type of reconstruction for oral and maxillofacial defects, aiming to minimize the damage to the donor site while recovering the appearance and function.