Objective To investigate the clinical effect of percutaneous endovascular interventional treatment for bilateral iliofemoral venous thrombosis. Methods From November 2012 to February 2016, the clinical data of 18 patients with bilateral iliofemoral venous thrombosis were retrospectively analyzed. All patients including 7 males and 11 females, aged from 51 to 86 years with an average of (66.2±7.8) years old. All patients underwent interventional treatment, and mechanical aspiration thrombectomy was performed under the protection of inferior vena cava filter at the acute or subacute phase; those whose venography showed iliac vein stenosis received balloon dilatation and self-expandable stents immediately. Iliac vein stenosis received balloon dilatation and self-expandable stents immediately at the chronic phase. Results The treatment was successful in all patients. The circumference difference of thigh and calf was (7.3±2.1) and (4.6±2.7) cm respectively before and after treatment. Thirteen patients with stenosis or occlusion of the iliac vein were treated with adjunctive balloon dilatation and stent placement, and 20 self-expandable stents were inserted successfully. All the patients were followed up for 12–34 months with an average of (21.5±7.3) months; stenosis or occlusion of the stent were seen in 1 patient after 9 months; post thrombotic syndrome was observed in 1 patient after 12 months. The 12-month primary patency rate and secondary patency rate was 88.9% (16/18) and 100.0% (18/18), respectively. Conclusion Endovascular interventional therapy of bilateral iliofemoral venous thrombosis is a safe and effective method.