From the view of active ecology, the book is able to resolve the design strategies on space, structure, surface, and appearance. What s more, it reveals the aspects of humanization working concept, respect to the nature environment, ways to pursue the balance between comfortableness and low energy consuming. There are about 30 projects around the world being included in this book, which shows the glamour of the works, meanwhile, demonstrates different methods to carry out the design programs. To prove the importance of energy-saving oriented design in modern office architecture, the analysis is provided on the environmental design of architectures, such as nature lighting and ventilation, external structure and shading design.