The traditional 2D CAD technology in the process of the architecture description, because the building plane, elevation and detailing are designed separately, not only wastes time, but also makes the mistakes frequently. It is difficult to describe the architecture in detail accurately, while due to the limitations of CAD, the designer is hard to make accurate building performance analysis of the two-dimensional space model. The designers can expand from the two-dimensional plane to three-dimensional space in designing as the appearance of BIM technology, and analyze the building performance accurately in the information model. This article gives an example as Sanya Xinhai Cadre Sanatorium, it states that BIM technology was used in the project design, at the same time, focusing on the study of BIM technology collaborates docking process with other building performance analysis software, summed up a series of design process which has guiding significance for the sustainable architecture design.