The cupid's bow is an important feature of the normal upper lip, and every effort should be made to reconstruct it during initial cleft lp surgery or trauma repair. However, a secondary surgical procedure is often necessary to improve the appearance and symmetry in the cupid's bow area. For this purpose, the authors present a quadrilateral type of interposition flap that can be used. in both unilateral and bilateral cupid's bow reconstruction. This procedure is applicable only when adequate vermilion is available.