Inclusion Criteria:  Patients who meet the diagnostic criteria of colorectal cancer and need elective radical resection of colorectal cancer; 18≤ age≤79, gender is not limited; Understand and agree to participate in the study and sign the informed consent; No previous history of abdominal surgery and no abdominal adhesion;  Exclusion Criteria:  Patients with mental illness; Patients requiring combined resection of other organs; Participated in or is participating in other clinical researchers in the previous 3 months People who have received acupuncture (including electroacupuncture) in the past; Other treatment options are being used (chemotherapy, radiotherapy, etc.) Those who meet any of the above criteria will be excluded from the study.