以徐州回龙窝历史街区的改造为例,从砖石民居的现状出发,阐释为什么要保护利用旧石材,并以徐州传统民居的石砌建构文化在美学、历史、经济等方面的价值为例,进一步论证对旧石材研究的重要性。 Taking the reconstruction of Hui Long Historic Block in Xuzhou as an example, this paper explains why the protection and utilization of old stone should be based on the current status of masonry. Taking the value of stone construction culture of Xuzhou traditional residential buildings in aesthetics, history and economy as an example , To further demonstrate the importance of the old stone research.