Priapism, persistent erection without sexual arousal, can be classified into low-flow (venous or ischemic) and high-flow (arterial or non-ischemic). Perineal trauma is one of the most common causes of high-flow priapism. The clinical symptom of this disease is generally a prolonged, painless, and semi- rigid penile erection without any other urogenital symptoms. It can be confirmed by penile color Doppler ultrasonography and arteriography and it is usually treated by the super- selective embolization. We present a case of a 44-year-old man with a post-traumatic high-flow priapism as a result of the previous perineal trauma. After two-times of embolization by the autologous blood clot and the resorptive gelatinous foam, he was successfully treated.