In the 2l century, sustainable development becomes the common theme. For urban construction, development pattern must also be run from the traditional high consumption to green-oriented. Green building is the only way to implement this change and it is also the inevitable trend for today's world. Referring to green building design specifications, this paper proposes the way of constructing 3d integrative BIM (building information modeling) by computer technology. It carry out an integrated management for geometric information of building space, functional information of building space, data integration on geometry information, functional information, building materials, equipments and other related professional data in construction. It provides the necessary basis for analysis for the calculation of green building design and evaluation. The green building evaluation based on the "green building rating standards" is realized by using of three-dimensional data visualization technology. It can provide architect with an effective tools for green building design.

3D modeling is one of the most primary features of BIM and Architecture CAD software. In this paper, we made a deep investigation into geometry kernels and modelers which are being used by current most popular and influenced BIM and Architecture CAD software. By evaluating, testing, comparing and applying three kernels, we got the suggestion and rules of using them, which could be a guide of designing and developing BIM software in the future.