Two cases of secondary penile tumor are reported. The first was a 69-year-old man with the complaint of continuous painful penile erection. He had been diagnosed to have left lung cancer, squamous cell carcinoma, and was treated with chemotherapy as well as irradiation 10 months previously. He underwent amputation of penis and histopathologically diagnosed to have penile metastasis from the lung cancer. The second was a 60-year-old man who had been treated by Miles' operation due to rectal cancer, adenocarcinoma, 24 months previously. Autopsy demonstrated continuous invasion in a corpus cavernosum of rectal cancer which had locally recurred. We reviewed and discussed briefly 74 cases with secondary penile tumor collected from the Japanese literature.