目的：了解手术治疗原发性骶骨肿瘤的疗效。方法：回顾分析１９８５年３月至１９９６年１０月手术治疗的原发性骶骨肿瘤２３例，包括良性肿瘤６例，恶性肿瘤１７例。病变位于Ｓ３以上者７例，Ｓ３以下者１６例。行全骶骨切除４例，次全骶骨切除１９例。结果：全部手术无一例死于术中。术后常见并发症为手术切口皮缘感染坏死、皮下血肿、脑脊液漏及大小便功能障碍。２１例平均随访３．８年，３例死于术后复发或转移，１６例能从事一般工作，２例能从事一般家务劳动。结论：做好详细的术前检查及周密的手术准备，术中尽量采用低温低压麻醉以减少出血量，采取各种积极措施防止术后并发症是手术成功的关键 Objective: To understand the efficacy of surgical treatment of primary sacral tumors. METHODS: Twenty-three primary sacral tumors that were surgically treated from March 1985 to October 1996 were retrospectively analyzed, including 6 benign tumors and 17 malignant tumors. The lesions were located in 7 cases with S3 or more, and 16 cases with S3 or less. All patients underwent total sacral resection in 4 cases and subtotal sacral resection in 19 cases. Results: None of the cases died of surgery. The common postoperative complications were necrosis, subcutaneous hematoma, leakage of cerebrospinal fluid, and dysfunction of urine and feces in the surgical incision. In 21 patients with an average follow-up of 3.8 years, 3 patients died of postoperative recurrence or metastasis. 16 patients were able to perform general work and 2 patients were able to perform general housework. Conclusion: Do detailed preoperative examination and careful surgical preparation, try to use low-temperature and low-pressure anesthesia to reduce the amount of bleeding, and take various positive measures to prevent postoperative complications is the key to successful operation.