Objective To observe the clinical effects of complete cleft lips of newborns with lip adhesion. Methods Lip adhesion was carried out on 14 newborns of complete cleft lip before cleft lip reparative surgery. Various nasal and upper lip parameters were compared between pre-surgery and post-surgery situations. Results There is obvious improvement for all 14 cases in the morphology of nostrils, nasal columella and upper lip. The nostril width narrows, height increases, and the flat nasal alar becomes more lift-up as an arch. The gradient of nasal columella decreases. Conclusion Lip adhesion of cleft lip has a significant role in the improvement of nasal and lip shape, which creates an ideal condition for surgical operation.