Objective To analyze the effect of nursing intervention based on iceberg theory combined with continuous nursing on oral health and nursing satisfaction in patients after implant surgery. Methods A total of 120 patients who underwent implant surgery in our hospital from March 2022 to March 2024 were selected as the research subjects. According to the random number table method, they were divided into the reference group and the observation group, with 60 patients in each group. The reference group received conventional nursing combined with continuous nursing, and the observation group received nursing intervention based on iceberg theory combined with continuous nursing. The anxiety condition, oral health status, masticatory function, self-efficacy and nursing satisfaction were compared between the two groups. Results After nursing, the scores of MDAS, gingival index, bleeding index and plaque index in the observation group were lower than those in the reference group, and the masticatory efficiency and occlusal force were higher than those in the reference group (P <0.05). After nursing, the scores of various aspects of self-efficacy in the observation group were higher than those in the reference group (P <0.05). The nursing satisfaction rate in the observation group (96.67%) was higher than that in the reference group (83.33%) (P <0.05). Conclusion For patients who underwent implant surgery, the application of nursing intervention based on iceberg theory combined with continuous nursing can reduce the anxiety level of patients, improve their oral health status, dental function, self-efficacy and nursing satisfaction.