The diversity of architecture constructs the flexible, changeable and unpredictable world. Nowadays technology creates infinite possibility on every field, including fabrication in architecture. The relationship between old and new, tradition and technology in architecture is a source of some confusion, which influenced the method of architecture design as well as the development of architecture industry. Combined with relative research, there are three questions to be figured out -- what role does tradition play in architecture? What role does technology play in architecture? What is the role of architecture? The author took Florence Cathedral as an example to explain the role of tradition in architecture. Architecture reflects human’s memory and refracts accumulation of human society. And history gives architecture the sense of stability and the meaning of the existing, which evokes meaning beyond the physical building. The author took one of optional studio about criminal behavior as an example to describe the utilization of technology in architecture. Technology not only accelarates the construction process, but also forces architecture to evolve to serve its final proposal. At last, the author took the design studio about Augmented Reality in Buffalo to claim the relationship between history and technology in architecture. The analysis about designing process comes to the conclusion that the role of architecture is to serve human experience. Key words: history, technology, architecture, human experience