Endobronchial metastases from prostate cancers are a rare phenomenon with only limited cases reported to date. Bronchoscopic biopsy and immunohistochemical test are essential for determining the diagnosis. And serum PSA level is a significant biomarker to assist the diagnosis. Our case describes a 68-year-old man presenting with bilateral endobronchial metastases after 5 years disease-free survival of prostate cancer.