Lumbar spine surgery is a relatively large operation, the operation time is relatively long, and the intraoperative bleeding is relatively large. First of all, we should pay attention to eating more iron-supplementing and blood-supplementing foods to correct intraoperative blood loss, such as red date soup, pig blood soup and pig liver soup. Secondly, because the incision of surgery is relatively large, the repair of postoperative wounds needs sufficient high-quality protein, so pay attention to eating more food rich in high-quality protein, such as lean meat, fish, beef, eggs, soybean products, etc. In addition, lumbar spine surgery will cause certain damage to the bone quality of the lumbar spine, so pay attention to more calcium-rich foods, such as milk, ribs, oxtail bones, etc. The specific dietary arrangement needs to be arranged according to the postoperative repair. 1-2 weeks after surgery, as the patient’s digestive ability is relatively weak, attention should be paid to eating more light and easily digestible food. From 2 to 4 weeks after surgery, it is necessary to increase food rich in high quality protein and calcium to promote the formation of bone scabs. After 5 weeks post-operatively, a normal balanced diet can be chosen.