Abstract: Postoperative patients who underwent digestive tract reconstruction have a high risk of malnutrition and absorbing barrier. Enteral nutrition support can effectively maintain and improve the nutritional status of the human body, shorten hospital stay, and reduce complications. Therefore, the enteral approach is the preferred postoperative means of nutrition support. This article retrospectively summarizes the appropriate time to start enteral nutrition support therapy after digestive tract reconstruction, the proper selection of the mode of enteral nutrition support, the different enteral nutrition preparations, and the treatment of postoperative complications.