The aim of this study is to introduce a new modification of fasciomyocutaneus infrahyoid flap with higher volume and longer durability in order to reduce the need of using free flaps in reconstructions after oral tongue cancers. six Patients with advanced cancers of the oral tongue, especially with base of tongue involvement, who traditionally had to be reconstructed with a free flap due to a large defect after resection, were involved in the study. In this study, they were reconstructed with modified fasciomyocutaneusinfrahyoid flap. From these six patients who were reconstructed with a modified infrahyoid flap, none of them showed evidence of necrosis or flap complications such as flap atrophy after surgery and over the time. The new modification of this flap can provide more volume than the previous modifications of this flap, and lead to a more routine use of this flap in oncological surgeries of the oral tongue.