OBJECTIVE： To provide reference for investigating the nutrition situation of the inpatients in departments of spinal surgery and minimally invasive spinal surgery and promoting the clinical rational use of nutritional support drugs. METHODS： Designated continuous sampling was used to select the inpatients that fit the conditions in the departments of spinal surgery and minimally invasive spinal surgery in our hospital from Jan. to Dec. 2013， and the nutritional risk screening 2002 was used to investigate the patients’ nutritional risk at admission and upon discharge， the nutritional support during hospitalization were recorded. RESULTS： In the 432 enrolled patients， the overall incidence of nutritional risk was 11.57％ at admission， 12.40％ in spinal surgery and 10.44％ in minimally invasive spinal surgery； and the overall incidence of nutritional risk was 19.44％ upon discharge， 23.60％ in spinal surgery， with statistical significance when compared with admission （P＜0.05）， while 13.74％ in minimally invasive spinal surgery， with no statistical significance when compared with admission （P＞0.05）. The nutritional support rate of 50 patients with nutritional risk at admission was 88.00％， 14.14％ of 382 non-risk patients still received a redundant nutritional support. The 44 patients with nutritional risk who received nutritional support had the average calories intake of （9.84±8.10）kJ/（kg·d）， including 10.16％ lipids and 9.55％ protein； all patients who received nutritional support found no patients with enteral nutrition support. CONCLUSIONS： Inpatients in departments of spinal surgery and minimally invasive spinal surgery suffer a lower incidence of nutritional risk at admission， and a higher incidence of nutritional risk in the former one upon discharge. While some patients who received nutritional support show no indication， and administrations of nutritional support are still debatable， the use of drug is irrational.