Jinan China Resources Mixc is an out-of-code high-rise commercial building with a structural height of 41.2m,which adopts a frame-shear wall structure.There are many plane and vertical irregularities in the structure,such as irregular torsion,plane opening,long span structure,large span cantilevered structure,inclined column,and cantilever truss,and so on.The seismic performance analysis was carried out by using various calculation programs,and those results all meet the established seismic performance targets.The design of each key part in the complex commercial has been compared with multiple options,and reasonable structural arrangement and appropriate structural measures have been determined,and finally the good results have been achieved.