目的　探讨原发性骶骨肿瘤切除后重建骨盆环的方法。方法　对 9例原发性骶骨肿瘤患者行手术切除 ,并采用内固定器械重建骨盆环 ,术后进行有限时间的随访 ,并对治疗结果进行分析。结果　 9例均获得随访 ,重建的骨盆环稳定 ,患者可坐、卧及行走 ,1例切口边缘皮肤部分坏死 ,经处理后痊愈。结论　原发性骶骨肿瘤切除后重建骶骨有助于恢复骨盆稳定 Objective To explore the method of reconstructing pelvic ring after excision of primary sacrum tumor. Methods Nine patients with primary sacral tumor underwent surgical resection and the pelvic ring was reconstructed with internal fixation. The patients were followed up for a limited period of time and the treatment outcome was analyzed. Results All the 9 patients were followed up. The reconstructed pelvic ring was stable. The patient was able to sit, lie and walk. One of the marginal skin of the incision was partially necrotic and recovered after treatment. Conclusion Reconstruction of the sacrum after excision of the primary sacrum tumor helps to restore pelvic stability