Objective To explore the effect of digital invisible orthodontic technology on tooth movement efficiency in adult patients with mild to moderate teeth malalignment. Methods A total of 60 adult patients with mild to moderate teeth malalignment admitted to Beijing Fengtai Hospital from January 2020 to March 2023 were selected as the research subjects, and they were divided into the control group and the observation group by the random number table method, with 30 patients in each group. The control group received traditional fixed orthodontic technology, and the observation group received digital invisible orthodontic technology. The tooth movement efficiency, periodontal health indicators and satisfaction were compared between the two groups. Results At 6, 18 and 24 months after treatment, the movement efficiency levels in the sagittal, vertical and horizontal directions of the observation group were higher than those of the control group (P <0.05). At 12 and 24 months after treatment, the PD, PLI and GBI of the observation group were lower than those of the control group (P <0.05). The satisfaction of the observation group was 96.67%, which was higher than 80.00% of the control group (P <0.05). Conclusion The application of digital invisible orthodontic technology in adult patients with mild to moderate teeth malalignment can effectively improve tooth movement efficiency, enhance periodontal health, and achieve high patient satisfaction, which is worthy of clinical application.