Objective To explore the application of light-curing composite resin in oral aesthetic restoration. Methods A total of 100 patients with oral aesthetic restoration admitted to the Department of Stomatology, Panzhou Traditional Chinese Medicine Hospital from February 2022 to December 2024 were selected as the research subjects. According to the random number table method, they were divided into the conventional group and the study group, with 50 patients in each group. The conventional group was treated with porcelain crown restoration, and the study group was treated with light-curing composite resin minimally invasive aesthetic restoration. The oral indexes, dental aesthetic effect, restoration effect, treatment satisfaction and adverse reaction rate were compared between the two groups. Results After treatment, the plaque index, sulcus bleeding index and periodontal probing depth in the study group were smaller than those in the conventional group, and the pink esthetic score and white esthetic score were higher than those in the conventional group (P <0.05). The total effective rate of restoration in the study group was higher than that in the conventional group (P <0.05). The treatment satisfaction rate of the study group was 96.00%, which was higher than 84.00% of the conventional group (P <0.05). The incidence of adverse reactions in the study group was 2.00%, which was lower than 32.00% in the conventional group (P <0.05). Conclusion Light-curing composite resin can improve the effect of oral aesthetic restoration, aesthetic effect and oral health, reduce the incidence of adverse reactions, and patients' satisfaction with treatment is high.