This article mainly researches the mechanism of enterprises community and its role of promoting district development, in order to reveal the reason and the law of enterprises, local industrial clusters promoting industry development.

As lots of positive researches show,enterprise cluster is of inherent advantages of obtaining competitive advantages,such as the external economic effect,transaction cost,and so on.

By using the trigger strategy game models,this paper explores the sustainability and spontaneity of enterprise cluster\'s eco-operation.

The paper analyzes the principles,the conditions of formation of enterprises community and puts forward the development of enterprise community and tries to design the mode.

Based on the analysis of effects of commercial enterprises cluster and its spacial Formatico in CBD, this paper analyzes land- value of Beijing s CBD , specialities of consumers and croud among CBD, discusses Beijigs CBD Commercial industry Formation and choices of the operations, then prompts some problems in the development of Beijing s CBD Commercial industry.