A 24-year-old man was assaulted and complained of vague discomfort with tenderness on the nose. Physical examination manifested pain over the nasolabial angle region aggravated by upper lip closure. Computed tomography with three-dimensional reconstruction of the facial bone revealed a fracture of the anterior nasal spine accompanying the overt displacement. The patient underwent open reduction and internal fixation. Clinical symptoms were completely resolved after the surgery. Regular diet was recommenced in 2 weeks without any complications. The purpose of this study was to emphasize the awareness of the clinical feature and the modality of treatment in case of anterior nasal spine fracture with displacement.