Pelvic tumors in the structure of cancer incidence comprise more than 25%. X-ray surgical interventions make it possible to superselectively embolize the vessels of a tumor, to precisely deliver a chemotherapeutic agent to its tissue, avoiding a systemic toxic reaction. Objective — to improve the results of treatment in patients with pelvic tumors, by using endovascular interventional radiological techniques. Subject and methods. Examinations were made in 112 patients with Stage II—IV pelvic tumors and a mean age of 56±8.5 years, who underwent endovascular interventions. Arterial embolization, intra-arterial chemoembolization, and chemoinfusion with carboplatin and cisplatin were used. A hemostatic effect, a tumor volume change, and tolerability and complications of X-ray endovascular techniques were evaluated. Results. Angiography can define treatment tactics, clarify the localization of the process, the nature of blood supply, and the source of bleeding, and assess the possibility of performing endovascular treatment. A hemostatic effect as a result of arterial embolization was achieved in 100% of patients with bleeding. Intra-arterial chemoembolization and chemoinfusion resulted in complete response in 18.8% of patients; tumor regression occurred in 48.9%; the process stabilized in 30.2%; progression was noted in 2.1%. The leading complications of arterial embolization are postembolization pain syndrome (9.8%) and intoxication (14.4%). Conclusion. X-ray endovascular interventions with selective embolization and chemoembolization of the pelvic arteries are effective in treating the locally advanced forms of bladder and cervical cancer, especially those complicated by bleeding.