A 39-year-old male patient presented with an extensive putrescent ulceration of abdominoperineal region infiltrated by advanced penile squamous cell carcinoma. To our knowledge, it is the largest defect after aggressive palliative resection of penile squamous cell carcinoma (pSCC) in the literature, which was 36×23 cm. The defect was divided into three sub-defects, and was repaired by bilateral anteromedial thigh (AMT) and left deep circumflex iliac artery (DCIA) flaps. The postoperative course was uneventful and no flap necrosis occurred. The symptom relief was excellent.