Objective To summarize the short-term efficacy， surgery complications， and relative experiences in the management of severe functional constipation （SFC） under laparoscopy-assisted subtotal colectomy combined modified Duhamel procedure. Methods All the data of 15 patients underwent laparoscopy-assisted subtotal colectomy combined modified Duhamel procedure from March 2010 to August 2011 were collected retrospectively， all the patients were diagnosed as SFC and failed to conservative therapy. The postoperative short-term efficacy， complications of surgery， score of gastrointestinal living condition， and improvement degree of defecation were analyzed. Results All 15 procedures achieved success， the operation time was （247.33±55.10） min， the intraoperative blood loss volume was （107.33±45.59） ml， the incision length was （8.40±2.41） cm， the postoperative out of bed activity time was （2.27±1.28） d，the postoperative passage of gas by anus time was （2.60±1.89） d， the postoperative defecation time was （2.87±2.50） d，the postoperative foods taken per oral time was （3.07±1.16） d， the hospital stay was （12.64±2.37） d. Approximately on day 3-4 after operation， 10 patients presented with postoperative diarrhea but were all under control with antidiarrheals efficiently. One patient presented with incomplete bowel obstruction on day 8 after operation and one patient with stomal leakage complicated with deep infection on day 9 after operation， who both recovered under conservative therapy. The scoreof gastrointestinal living quality on month 1 after operation was significantly higher than that on day 1 before operation （121.80±4.72 versus 90.80±7.24， P=0.000）， and the improvement degree of defecation was （0.81±0.56）%. Conclusions From the limited case informations， the laparoscopy-assisted subtotal colectomy combined modified Duhamel procedure has a certain short-term curative effect in treatment for SFC with the advantages of faster recovery， less bleeding， shorter hospital stay， and fewer complications.