Objective To compare the application effect of light archwire technique and rocking-chair archwire technique in anterior teeth intrusion treatment of anterior deep overbite. Methods A total of 60 patients with anterior deep overbite admitted to Foshan Chancheng District People's Hospital from January 2022 to December 2023 were selected, 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 was treated with rocking-chair archwire technique, and the observation group was treated with light archwire technique. The anterior teeth intrusion, root resorption rate, complication rate and satisfaction were compared between the two groups. Results The anterior teeth intrusion of the observation group after treatment was (4.10±0.35)mm, which was higher than (1.67±0.26)mm of the control group (P <0.05). The root resorption rate and the incidence of complications in the observation group were lower than those in the control group (P <0.05). The satisfaction scores of treatment effect, comfort and aesthetic effect and total scores in the observation group were higher than those in the control group (P <0.05). Conclusion The light archwire technique has a more definite intrusion effect in the treatment of anterior deep overbite, with lower incidence of root resorption and complications, and higher patient satisfaction, which is worthy of clinical application.