recently, it has a century of history. The old factory building of Feng flour mill is surrounded by more than 30 storey residential buildings and looks low and old. In 2012, after the demolition of the official camp area, the Chengfeng flour mill, which was built in 1921, was retained. At the end of 2013, it was included in the list of the Fourth Municipal relic protection units in Ji'nan. Now, with the surrounding housing reform project approaching the end, Chengfeng flour factory "Resurrection" is also on the agenda. On the basis of meeting the requirements of cultural relics protection, the old factory will set up the industrial and commercial museums, build the traditional cultural and creative blocks, industrial bases and characteristic catering, so as to give full play to the new historical value of cultural relics.