Objective:To assess the feasibility, efficacy, and therapeutic advantages of radioactive 125I seed implantation for the treatment of abdominal metastases. Methods:The clinical data of eight patients with abdominal metastases treated with radioactive 125I seed implantation were retrospectively analyzed. Results:Of the three pelvic metastasis cases, two patients with grade II pain had postoperative pain relief, and one patient with grade III pain had a gradual decrease in pain to grade I one week after surgery. One patient with lower extremity edema had complete disappearance of edema one month after surgery. The lumbar back pain disappeared after ureteral stent implantation in one patient with ureteral compression. In three patients with perineal drop sensation, the discomfort disappeared at the 2-month postoperative follow-up. In two patients with abdominal wall metastases, the pain disappeared one day after surgery, and the metastatic lesions gradually decreased in size. Postoperative re-evaluation of patients with multiple peripancreatic and retroperitoneal lymph node metastases showed the disappearance of lymph node enlargement.Conclusion:Radioactive 125I seed implantation can effectively improve the life quality of patients with abdominal metastases.