Information design and construction in engineering is a new extension. In this article, authors analyze and discuss the technique and principle[KG*2]of information design and construction. It is the main part that uses the information as the principle for design and construction. Combining the twin-multiple arch tunnels in Xiangwu Section of Xiangshi Expressway Project, calculate the stability of wall rock during construction progress by the Finite Element Method, and with the data obtained by on-site construction monitoring, optimize the original design and construction.