Bone tumors in the pelvic area are restricted by local anatomical characteristics, so it is difficult to perform tumor resection and artificial prosthesis replacement surgery, and the intraoperative bleeding and surgical trauma are great, and the artificial prosthesis does not function well. In comparison, microwave in situ inactivation surgery is more ideal, because after the tumor is revealed, instead of resection, microwave inactivation is performed to kill the tumor and preserve the patient’s own pelvis without resection and reconstruction, which greatly reduces the difficulty of surgery, bleeding and surgical trauma, and because the iliac bone in the pelvic area is flat and the surrounding soft tissue condition is better, so the bone is relatively easy to heal. The risk of pathological fracture after microwave inactivation is relatively low.