The gastro-omental flap consists of a patch taken from the greater curvature of the stomach and the bordering omentum. It is based on the right gastro epiploic vessels and is used as a free flap for intraoral reconstruction after resection of oral carcinoma. Twenty patients underwent gastro-omental flap. The operative technique is described. The evaluation consisted in questioning, chemism on the salivary flow and biopsies. There is no morbidity related with the donor site. The gastro-omental flap avoids post irradiation xerostomia. Oral irritation and bleeding of the flap may occur.