In this study, the flow of action regarding to disassembly and repairing work(DRff) for preservation of historical buildings was made clear by examples. And the chenges of members that compose buildings were indicated clearly by symbolization of the members. The process for works of DRff was divided into 4 steps, and common .elements of each work were sampled. And matrices of 4 process of works and the elements of each work were made. By symbolization and by these matrices, a framework that is able to examine precise building system for preservation by DRff are shown.