This chapter looks at obstacles for implementing green building in design practices in China. A literature and document review is conducted to understand current situation of design process in China. An interview of experienced green building designers is conducted to identify the specific obstacles to designing green building in China. The research found that the conventional linear design process negatively affects the implementation. The specific obstacles mentioned architects are such as intrinsic mind-set, difficulties in performance assessment, unsuitable working patterns and doubts about green technologies. The study suggests that the measure to unblocking these obstacles and moving forward green building development is an integrated design process. The research also suggests at least three paradigm shifts toward the integrated design process: from descriptive to performance-based design, from personal experience to building simulation, and from individual to collective decision making.