Objective To explore the effect of micro-screw implant anchorage on root resorption status in orthodontics patients. Methods A total of 100 orthodontics patients admitted to the Department of Orthodontics, Jiangmen Municipal Stomatological Hospital from May 2022 to May 2024 were selected as the research subjects. According to the random number table method, they were divided into the control group and the observation group, with 50 patients in each group. The control group received extraoral arch strong anchorage treatment, and the observation group received micro-screw implant anchorage treatment. The root resorption status, masticatory function, dental aesthetics and complications were compared between the two groups. Results After treatment, the root resorption status of the maxilla and mandible in the observation group was better than that in the control group (P <0.05). The scores of masticatory function and dental aesthetics in the observation group were higher than those in the control group (P <0.05). The incidence of complications in the observation group (2.00%) was lower than that in the control group (20.00%) (P <0.05). Conclusion Micro-screw implant anchorage treatment has a good improvement effect on the root resorption status of orthodontics patients. It can also effectively prevent the incidence of complications, which is beneficial to improving the masticatory function of patients and enhancing the dental aesthetics.