The application of CAD technology in history architectural renewal

Along with the computer function constantly upgrading and deepening of the application of computer-aided design technology, the paper shows that the previous application mode of "computer-aided design" has been dramatically shifted to the mode of "computer-aided thinking" during the past decades. The paper discusses the methods and process of applying computer-aided design technology in historical architectural renewal through the example of the renewal design in Hubushan historical district in Xuzhou, China.