Objective To investigate the effects of online follow-up mode and online + offline follow-up mode on rehabilitation after total hip arthroplasty. Methods Patients who underwent total hip arthroplasty in the Department of Orthopedic Surgery, West China Hospital of Sichuan University between August and December 2022 were selected. According to personal preference, the included patients were divided into an observation group and a control group. The observation group underwent comprehensive follow-up mode, while the control group underwent simple online follow-up mode. Joint function, daily living ability, Huaxi Emotional-distress Index, follow-up satisfaction, complications and readmission were compared between the two groups at 3, 8, 26 and 52 weeks after surgery. Results A total of 83 patients were included. Among them, there were 41 cases in the control group and 42 cases in the observation group. There was no statistically significant difference in personal basic information and disease-related data between the two groups (P>0.05). The joint function and daily living ability of the observation group were better than those of the control group at 8, 26, and 52 weeks after surgery (P<0.05). There was no significant difference between the two groups in Huaxi Emotional-distress Index and follow-up satisfaction at 52 weeks after operation (P>0.05). The incidence of complications in the observation group was lower than that in the control group (P<0.05). Conclusions The comprehensive follow-up model has more advantages in direct physical assessment, wound assessment, in-depth communication, timely feedback and adjustment, which can improve patients’ postoperative joint function, enhance their daily life ability, and reduce the occurrence of postoperative complications.