Abstract: Urban high-density development is not equal to high volume-ratio development, super high-rise building complexes are not simply a function of space superposition. Under the guidance of planning concept of "small blocks, dense road network", the overall layout, traffic organization and functional layout of super high-rise buildings are restricted and influenced, strategies and measures of architectural design are needed to achieve the deep integration of super high-rise buildings and urban high-density blocks. From the points of multidimensional traffic organization and 3D spatial integration, some design strategies were put forward, such as the combination of pedestrian system and commercial moving line, the sharing of motor vehicle entrances and exits, the creation of open urban public spaces, and the integration of underground space boundary height. Planning and integrating the interior and exterior of the super high-rise building complex as well as the ground and underground system, it was wanted to promote efficiency in high density blocks to build a "vertical city" under high-density blocks.