We present a clinical case of a 73-year-old female patient with a lesion on the upper lip of 15 mm. A resection of the lesion is performed leaving margins of 5 mm, with a histopathological diagnosis of basal cell carcinoma. A nasolabial rotation flap was made of approximately 30 mm in diameter. She went for a check-up after 2 weeks with adequate healing, the sutures were removed and the results were recorded 4 weeks after surgery. The general measures to take into account for the reconstruction of the upper lip are in relation to preserving its functionality and aesthetics. The surgeon should avoid horizontal scars by making incisions following the tension lines of the relaxed skin or wrinkles. The nasolabial flap provides a lot of variations that can be used depending on the size and localization of the lesion. This flap is an excellent option for facial reconstruction after oncologic surgery, and in this case, a very good aesthetically and functional result. Keywords: Nasolabial flap, Basal Cell Cancer, Lip Reconstruction.