Purpose: Hemostasis can be achieved by various methods, but it can be difficult to stop active bleeding in the pelvis. An effective method is described to stop massive active bleeding in the pelvis during colorectal surgery.Methods: When there were massive bleedings in the pelvis, 3 to 5 Foley catheters were inserted through stab wounds on the abdomen. The tips of catheters were placed in the pelvis. Each balloon was inflated with 40 mL of sterile water. The water inside each balloon was removed gradually from the third postoperative day. If there is no further bleeding, all catheters were removed on the 7th postoperative day.Results: There were 8 patients (4 males and 4 females) with massive pelvic bleeding encountered from January 1998 to December 2018. Four patients underwent low anterior resection for primary rectal cancer, 2 patients for colon cancer with pelvic recurrence, 1 patient for ovary cancer with pelvic recurrence, and 1 patient for presacral parachordoma with a bleeding tendency. All of the patients survived without further bleeding after surgery.Conclusion: The technique is a simple method to control massive pelvic bleeding during colorectal surgery. It is also inexpensive and effective even in patients with a bleeding tendency.