随着充盈检查技术的规范化推广应用，超声在胃肠疾病的诊断中发挥越来越大的作用，已成为继内窥镜、X线后又一客观影像学检查方法。胃肠超声尤其对胃肠急危重症如消化道穿孔(或破裂)、梗阻、扭转、异物损伤、血管栓塞等具有较高的诊断准确率，不仅能快速判断病因，确定病变部位和性质，且能联合介入超声，结合临床和相关检查对病情进行全面评估、监测，为临床围手术期诊疗提供精准的指导和帮助。胃肠超声以其便捷、无创、价廉、直观、重复性好、准确性高等优点，已成为临床首选检查方法。笔者旨在总结探讨超声在胃肠急危重症诊断中的应用价值，为临床工作提供参考依据。

With the standardized application of the filling technique, gastrointestinal ultrasound gradually plays an important role in the diagnosis of gastrointestinal diseases, and has become another objective imaging examination method after the endoscopy and X-ray imaging. Gastrointestinal ultrasound has much higher diagnostic accuracy in gastrointestinal acute critical diseases such as gastrointestinal perforation (or rupture), obstruction, torsion, foreign body injury and vascular thrombosis. It can not only quickly identify the etiopathogenesis, determine the location and nature of lesions, but also can comprehensively evaluate and monitor the disease in combination with interventional ultrasound, clinical and related examinations, which can provide accurate guidance and assistance to the perioperative diagnosis and treatment. Therefore, gastrointestinal ultrasound has become the preferred examination option as it has the advantage of being convenient, noninvasive, economical, intuitionistic, repeatable and accurate. The purpose of this article is to analyze and discuss the value of ultrasound in diagnose of acute critical gastrointestinal diseases for clinical reference.