目的　应用自己设计的人工骨盆重建髋臼周围肿瘤外科切除后的骨缺损。方法　对 5例髋臼巨大肿瘤进行成功切除与人工骨盆重建。结果　人工骨盆具有结构简单 ,固定牢靠 ,安装方便 ,力学传递接近生理要求 ,保留和重建了有活动的髋关节 ,假体周围植骨能做生物学修复的优点。结论　假体可应用于骨盆的原发肉瘤 ,破坏广泛的良性肿瘤及转移癌。 Objective To reconstruct the surgically resected bone defect around the acetabulum with artificial pelvis designed by ourselves. Methods Five cases of acetabular giant tumor were successfully resected and artificial pelvic reconstruction. Results The artificial pelvis has the advantages of simple structure, firm fixation, easy installation, mechanical transmission close to the physiological requirements, retaining and reconstructing the active hip joint, and the bone graft around the prosthesis can be used for biological repair. Conclusion Prostheses can be applied to pelvic primary sarcomas, which destroy a wide range of benign and metastatic cancers.