Objective To investigate the effect of orthodontics combined with porcelain cosmetic assisted tooth correction on patients' aesthetics and occlusal function. Methods A total of 70 patients with tooth correction admitted to Xi'an Jiren Hospital from January 2019 to January 2024 were selected and randomly divided into control group and observation group, with 35 patients in each group. The control group was treated with single orthodontics, and the observation group was treated with porcelain cosmetic assisted treatment on the basis of the control group. The occlusion, aesthetic restoration effect and complications were compared between the two groups. Results The occlusal contact time of the observation group was longer than that of the control group, the percentage of left and right lateral force was less than that of the control group, and the force center distance was shorter than that of the control group (P <0.05). After treatment, the scores of tooth color, shape, translucency and edge aesthetics in the two groups were higher than those before treatment, and the scores of tooth color, shape, translucency and edge aesthetics in the observation group were higher than those in the control group (P <0.05). The incidence of complications in the observation group was 2.86%, which was lower than 20.00% in the control group (P <0.05). Conclusion The effect of orthodontics combined with porcelain cosmetic treatment in patients with tooth correction is better, which can effectively enhance occlusal force, improve the aesthetics and reduce the risk of complications.