In recent year, "Corporate Social Responsibility: CSR" has been discussed in various countries. I think, to discuss on CSR is eventually to consider a question that "For whom is the corporation exists?", and furthermore, to consider a question that "What is to be prescribed by the Corporation Law?". I have plans to consider them soon. But, in order for me to consider them, a preparatory stage of considering the CSR is required. This paper corresponds to a preparatory stage of my next study. Therefore, in this paper, first, I sketch the outlines of CSR theory where came from and how represents the historical development. Then, I introduce the basic theories and concepts that are included in the present concept of CSR. At the end, I consider them, from the perspective as a researcher of the Corporate Law.
