Abstract: Only scientific and reasonable nutritional support treatment, can reduce complications to the maximum extent, so that patients will rehabilitate faster and more stably. Authors integrate bundles of care from enhanced recovery after surgery, combined with the latest research progress domestic and overseas, to discuss nutritional status and nutritional risk screening, focus of perioperative nutrition support therapy, key issues on the pre-, intra- and post-operative periods of nutritional support treatment, and strategy of throughout nutritional management during perioperative period. These includes the following aspects: integrating nutrition management into perioperative period management; avoiding fasting before surgery; resuming oral feeding early; early nutritional support therapy for high nutritional risk patients; metabolic control, such as positive control of blood glucose; reducing stress related catabolism or factors affecting gastrointestinal function recovery; decreasing postoperative anesthesia drug use for ventilator management; early activity to promote protein synthesis and muscle function recovery.