Green construction (GC) has become an inevitable choice of current engineering construction. Green Construction scheme, which contains scientific and effective construction of the indicator, is helpful to promote the development of green construction and evaluation. Based on the energy and resource utilization, environmental impact of construction, construction enterprise integrated management, and technical support, this paper develops a set of objective, feasible GC index system, and employs the entropy theory and method of base points to establish a mathematical model. Through analyzing engineering examples, the method is practical which can be used in the early period of the project bidding scheme evaluation and construction of quality evaluation of the later-period.