Forehead flap, as one of the most commonly used flaps in defect reconstruction of the head and neck, has many advantages, such as sufficient blood supply, well match to the recipient in color and texture. With the advent of new vascular examination methods including computed tomographic angiography (CTA), surgeons may get better acquainted with the vasculature of the forehead flap prior to the surgery. The application scope of the flap was correspondingly extended following incessant emergence of the innovative flap design and harvesting techniques. In this article, the applications of CTA and propeller flap techniques in the forehead flap were reviewed.