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探讨超声在恶性梗阻性黄疸中的定性与定位诊断价值。方法：对104例恶性梗阻性黄疸病例进行回顾性分析，并与手术病理结果对照。结果：本组肝门部胆管癌30例，肝外胆管癌25例，胰头癌38例，壶腹癌11例中，检出率及定位准确率以肝门部胆管癌最高，其次是胰头癌和壶腹癌，最后是肝外胆管癌。结论：超声在恶性梗阻性黄疸中的定性与定位诊断有重要意义。“,”Objective To evaluate the value of ultrasonography in the qualitative and localizing diagnosis of the malignant obstruvtive jaundice. Methods Retrospective analysis was made on 104 cases with the malignant obstruvtive jaundice confirmed by pathology. Results 30 cases were diagnosed hilar cholangiocarcinoma,25 cases were diagnosed extrahepatic bile duct carcinoma,38 cases were diagnosed carcinoma of head of pancreas,11 cases were diagnosed carcinoma of ampul a.Study shows the hilar cholangiocarcinoma has high detection rate and localization accuracy,fol owed by carcinoma of head of pancreas and carcinoma of ampul a,and the last is extrahepatic bile duct carcinoma. Conclusion Ultrasonography has played an important role in the qualitative and localizing diagnosis of the malignant obstruvtive jaundice.