The experience of countries and regions with developed cultural industries has shown that environment of gathering development could boost the cultural industries with distinctive character and good brand, which supports the development of the whole regional cultural industries. Gathering development could strongly bring the cultural industry stronger. This paper, on the current research situation of cultural industry agglomeration studying, introduces system dynamics theory into the research of cultural industry gathering, builds its model on system dynamics theory.

s: According to index selection principle, and considering the process of selection as well as the characteristics of the architecture enterprise, this paper establishes a set of comparatively rational index appraisal system. Based on method of primary component analysis, we obtain the components from credit appraisal index of 24 architecture enterprises. It singles out the GA-BP Neural Network as the credit appraisal method of architecture enterprise, sets up a credit appraisal model of architecture enterprise, and finally verifies the practical and scientific attribute of the model.