The most common site of metastatic carcinoma is the upper body, followed by abdomen, and head & neck. Renal cell carcinoma is the third most common cancer that causes metastasis to the head and neck. A 66-year-old man presented with easily bleeding erythematous nodules on scalp. He recognized the lesion 1 month ago. The patient had an ankylosing spondylitis for 40 years and no medication history. We performed histopathologic examination and immunohistochemically stain. On the histopathological examination, the specimen of the lesion showed clear cells with clear cytoplasm and trabecular growth pattern. However accurate identification was not possible. For further evaluation, chest & abdomen CT scan was performed. On the abdomen CT, there was mass on Rt. Kidney. We could diagnosis as skin metastasis of renal cell carcinoma. The patient was treated with excision of metastatic skin lesion and nephrectomy of Rt. kidney. It is important to bear in mind the possibility that the skin tumors migrated from visceral malignancy. Therefore, it is necessary to identify the primary lesion of the tumor using appropriate instrumental analysis, as well as histological examination. Herein, we report a case of metastatic renal cell carcinoma that did not identify the origin of the tumor by histopathologic examination.