Enteral nutrition is the first choice of nutritional support for clinical patients. The bedside ultrasound has provided auxiliary support for the placement of intestinal tube, increased the success rate of tube placement, and alleviated the pain of patients. This article reviews the techniques and methods of ultrasound-assisted placement of nasointestinal tube at present, aiming to provide reference for clinical practice and further provide ideas for bedside ultrasound assisted placement of nasointestinal tube. (肠内营养作为临床患者营养支持的首选途径。床旁超声引导为鼻肠管的置入提供了辅助保障, 提高了置管成功率, 减轻了患者的置管痛苦。本文综述了超声辅助鼻肠管置入法的技巧及方法, 旨在为进一步为提高鼻肠管置入质量提供参考。)