Objective To explore the effect of longitudinal track continuous nursing on self-care ability and oral health in patients with malocclusion undergoing bracketless invisible orthodontics. Methods A total of 80 patients with malocclusion undergoing bracketless invisible orthodontics admitted to our hospital from December 2020 to December 2023 were selected as research subjects. According to the random number table method, they were divided into the control group and the observation group, with 40 patients in each group. The control group received conventional nursing, and the observation group received longitudinal track continuous nursing on the basis of the control group. The self-care ability, oral health, pink esthetic effect, patient satisfaction and complications were compared between the two groups. Results Compared with the control group, the scores of self-concept, self-responsibility, self-care skill and health knowledge level in the observation group after nursing were higher (P <0.05). Compared with the control group, the plaque index (PLI), sulcus bleeding index (SBI), periodontal pocket depth (PD) and gingival index (GI) in the observation group after nursing were lower (P <0.05). Compared with the control group, the pink esthetic score (PES) in the observation group after nursing was higher (P <0.05). Compared with the control group, the satisfaction scores of masticatory function, language function, comfort and aesthetics in the observation group were higher (P <0.05). Compared with the complication rate of the control group (22.50%), the complication rate of the observation group (2.50%) was lower (P <0.05). Conclusion Longitudinal track continuous nursing can effectively improve the self-care ability of patients with malocclusion undergoing bracketless invisible orthodontics, improve oral health and pink esthetic effect, reduce the incidence of complications, and improve patient satisfaction.