Xixi Renjia Xaiaoyuan project is a multi-storey reinforced concrete frame structure, four stories , the total building height of the building is 10.5 meters. Use the foundation under column.The design of the book include the following components:Project profiles;Roof, floor design;Load calculation;Frame stress analysis, calculation and design;Stair design;Pile foundation design.The design finaliy complete nine drawings.Key words: reinforced concrete, structural design