Abstract: In recent years, nutritional support therapy has been increasingly paid attention to scientific and reasonable using for patients. Based on the recent researches, the hot topics on the nutritional risk screening, nutritional status assessment and preoperative and postoperative nutritional support therapy were analyzed, and the strategies and progresses of nutritional support therapy for the postoperative critically ill patients, obese patients and short bowel syndromes or bowel failure patients were summarized, meanwhile, hot issues on the standardized nutritional support therapy in the perioperative period were explored in this article.