Abstract: Intra-abdominal infection is often secondary to the injury or lesion of various organs in the abdominal cavity, or after abdominal surgery. With the continuous development of its concept and technology, nutritional support has gradually become one of the important means for the treatment of patients with intra-abdominal infection. The comprehensive treatment of abdo-minal infection includes controlling of infection source, reasonable antimicrobial therapy, supporting of organ function, nutritional treatment, regulating of immune function, etc. Combined with their clinical experiences, the authors review the relevant researches at home and abroad and analyze and expound the nutritional support strategies for patients with intra-abdominal infection.