Abstract:[Objective] To explore the clinical outcomes of lumbar, abdominal and hip muscle group orientated training on postoperative kinesiophobia, hip function, and quality of life in the elderly who underwent total hip arthroplasty (THA). [Methods] A total of 77 elderly patients who were undergoing THA for femoral neck fractures from February 2022 to December 2022 were included in this study, and divided into two groups according to the doctor-patient communication. Of them, 38 patients received the lumbar, abdominal and hip muscle group orientated training (the training group), while 39 patients received routine rehabilitation training (the conventional group). The differences in TSK-17 score, Harris score for hip joint function, NRS score for pain, and SF-12 score for quality of life were searched between the two groups. [Results] There was no significant difference in the abovementioned scores between the two groups before surgery (P>0.05). The training group proved significantly less TSK-17 score [(32.2±7.0) vs (37.2±6.5), P=0.002], whereas significantly greater SF-12 score [(63.1±9.2) vs (56.6± 9.1), P=0.003] than the conventional group, despite of the fact that there was no statistically significant difference in Harris and NRS scores between the two groups 3 days postoperatively (P>0.05). In addition, the training group was marked significantly lower TSK-17 score [(25.3± 4.3) vs (30.7±5.5), P<0.001] and NRS score [(1.1±0.6) vs (2.4±1.0), P<0.001], while significantly higher Harris score [(75.3±4.5) vs (70.6± 6.8), P<0.001] and SF-12 score [(70.9±7.4) vs (65.8 ± 9.0), P=0.008] than the conventional group a week postoperatively. Furthermore, the training group also proved significantly lower TSK-17 score [(4.8±4.6) vs (7.3±5.7), P=0.033] and NRS score [(0.6±0.5) vs (1.1 ± 0.8), P= 0.005], while significantly higher Harris score [(81.8±5.4) vs (79.6±4.6), P=0.045] and SF-12 score [(77.8±8.3) vs (73.9±7.2), P=0.030] than the conventional group at the latest follow-up. [Conclusion] The lumbar, abdominal and hip muscles orientated training after THA in elderly does effectively reduce the incidence of postoperative kinesiophobia, enhance hip functional activity, and improve quality of life.