Objective To explore the effect of bracketless invisible orthodontic technology on orthodontic treatment effect and oral function in patients undergoing orthodontics. Methods A total of 80 patients who received orthodontics treatment in Zhongshan Stomatological Hospital of Ezhou from January 2021 to December 2022 were selected as the research subjects. According to the random number table method, they were divided into the control group and the study group, with 40 patients in each group. The control group was treated with self-ligating bracket orthodontic technology, and the study group was treated with bracketless invisible orthodontic technology. The orthodontic treatment effect, orthodontic treatment time, oral function, patient satisfaction and adverse reaction rate were compared between the two groups. Results The excellent and good rate of orthodontic treatment in the study group was 95.00%, which was higher than 80.00% in the control group (P <0.05). The orthodontic treatment time in the study group was shorter than that in the control group (P <0.05). After treatment, the masticatory efficiency (ME) in the two groups was higher than those before treatment, the speed of occlusion (SO) and maximum masticatory force (MF) in the two groups were lower than those before treatment, and the ME, SO and MF in the study group were higher than those in the control group (P <0.05). The satisfaction scores of retention function, masticatory function, aesthetic degree, comfort level, convenience degree and speech function in the study group were higher than those in the control group (P <0.05). The incidence of adverse reactions in the study group was 7.50%, which was lower than 25.00% in the control group (P <0.05). Conclusion The application of bracketless invisible orthodontic technology in orthodontics has a definite effect. It has the advantages of short orthodontic treatment time, good orthodontic treatment effect, little impact on oral function, high patient satisfaction, and few adverse reactions.