Abstract: Stress hyperglycemia is an elevation of blood glucose triggered by acute illness such as surgery, trauma or infection. Frequent fluctuations of blood glucose may affect postoperative recovery, increase the risk of infection, and prolong the rehabilitation period. An optimal peri-operative nutritional support strategy can help patients to stabilize blood glucose, prevent related complications. Expert consensus on patient nutrition support management of perioperative hyperglycemia (2025 edition) is developed by the Chinese Society of Parenteral and Enteral Nutrition, Clinical Nutrition Health Branch of China International Exchange and Promotive Association for Medical and Health Care and Chinese Nutrition Society Branch of Clinical Nutrition. Followed the evidence‑based principles, this consensus emphasizes individualized strategies from the aspects of overall glycemic control target, glycemic control methods, development of nutritional support interventions and glycemic regulation for specialized surgical procedures to optimize patient prognosis and reduce complications. The aim is to standardize nutritional support therapy and blood glucose management for patients with perioperative hyperglycemia.