Abstract:Based on the actual requirements of conservation and reuse of modern historical buildings, this paper discusses the technical path under the pre-planning orientation: introducing the CRS planning system and standard, and combining the conservation and rehabilitation design of Wu’s Residence in No. 29 Jianxin Lane, Suzhou, with the five steps of establishing objectives, researching and analyzing, proposing concepts, determining needs, and clarifying problems. In order to promote and implement the operation method and decision-making system for the conservation and rehabilitation of modern historical buildings.