The process of hip replacement is divided into three main sections, preoperative, intraoperative and postoperative, as follows: a. Preoperative preparation is divided into three areas: preoperative examination, perfect laboratory tests, such as blood tests, and chest films, local hip plain films, CT, etc.; preoperative design, talk to the patient about what kind of prosthesis to choose, whether to use imported or domestic ones. In addition, according to the patient’s financial ability, we have to choose the appropriate price of the prosthesis. Our operators should choose a cemented prosthesis, a biologic prosthesis, a proximal stabilized prosthesis, or a distal stabilized prosthesis based on the preoperative assessment of imaging data such as X-rays or CT films. Pre-operative evaluation should be done in cooperation with the anesthesiology department, and the operating room for pre-operative and medical evaluation; Second, intra-operative preparation: first of all, the operator should choose a suitable surgical incision according to the patient’s condition and his or her habits, i.e., whether or not minimally invasive, etc.; Third, the post-operative period is divided into two major blocks: peri-operative management and post-operative rehabilitation management. One is postoperative perioperative management, which is mainly to ensure that hip replacement patients, especially the joints of elderly patients, should pay attention to their vital signs and conduct laboratory tests, such as correcting anemia and electrolyte disorders when there are problems with blood tests, and to give control in diet and manage the postoperative position, urine and stool, and postoperative incisions. Another is rehabilitation, rehabilitation is very important, originally we mainly focus on the surgical technique, 30% of the surgical effect is achieved by the surgical technique, while 70% is mainly achieved by postoperative rehabilitation, postoperative rehabilitation training should be standardized, the patient recovery effect will be better.