1, psychological rehabilitation guidance Before and after surgery, there are two situations: one is eager to achieve, exercise progress blindly ahead of schedule and random activities; the other is too cautious, worried about the failure of surgery after activities. Therefore, we should pay attention to the detailed understanding of patients’ mental reaction before and after surgery, encourage patients to enhance their confidence in rehabilitation on the one hand, and introduce the purpose, method and precautions of rehabilitation training on the other hand. For those who are eager to achieve, guide them to master the appropriate exercise methods, and proceed step by step, according to their ability; for those who are too cautious, try to eliminate their doubts, encourage and help them to exercise, and finally make all patients carry out rehabilitation training with a good psychological state. 2.Pre-operative rehabilitation training The purpose is to make patients master the methods of functional exercise and clarify the precautions in advance. Posture guidance is to explain to patients the correct postoperative position to be taken to prevent prosthesis dislocation. The patient can lie flat or in semi-recumbent position, but the affected hip is flexed.