The blood supply of abdominal perforator flap is supplied from the superior/inferior epigastric artery, inferior posterior intercostal artery, inferior costal artery, lumbar artery, superficial epigastric artery, superficial/deep circumflex iliac artery and superficial pudendal artery. The perforators of these arteries are widely anastomosed in the anterolateral abdominal wall. The anterior wall of the lower abdomen is abundant in soft tissue and soft in texture, so, satisfactory shape and functions can be obtained after the reconstruction of oral and maxillofacial defects. There are abundant anastomoses in the fascial layer between the superficial epigastric artery, inferior epigastric artery, superficial circumflex iliac artery and inferior posterior intercostal artery. The blood supply of the skin in this area mainly depends on the inferior epigastric artery perforator and superficial epigastric artery. However, the anatomic structures of the skin and soft tissue of the inferior abdomen supplied and supported by these two arteries are quite different. The superficial epigastric artery travels in the superficial fascia under the dermis of the abdominal wall, and directly provides nutrition to the skin and soft tissues in its area, while the inferior epigastric artery sends out multiple musculocutaneous perforators, which are widely anastomosed in the fascia to provide nutrition to the skin tissues in their area.