Malignant bowel obstruction is a common end-stage event in advanced cancer patients and 20% of tumors eventually develop into malignant bowel obstruction. However malignant bowel obstruction patients have poor prognosis and lack of effective treatment. The diagnosis and treatment path treatment strategy surgical indications and contraindications and the benefit of surgical treatments are all topics that need to be explored. The Chinese Anti -Cancer Association organized many experts with rich clinical experience in the field of diagnosis and treatment of malignant bowel obstruction to discuss the definition epidemiology pathophysiology treatment principles and methods and efficacy evaluation of malignant bowel obstruction redefined the definition of malignant bowel obstruction and summarized the pathophysiological mechanism of the occurrence and development of malignant bowel obstruction. The treatment strategy of "multi-disciplinary consultation hierarchical diagnosis and treatment integrated treatment and precise intensification" for malignant bowel obstruction were proposed and the indications contraindications surgical methods and evaluation methods and indicators of the surgical effect of malignant bowel obstruction were defined and the effects of surgical treatment and drug therapy for malignant bowel obstruction were evaluated. The Chinese expert consensus on the treatment of malignant bowel obstruction 2023 will certain significance for improving the standard treatment level of malignant bowel obstruction.