Abstract:The government can build a forward-looking development system for network cultural industries, realizing the healthy and rapid development by identifying network culture industry factors. The influencing factors model of network cultural industries development included internal factors (network cultural products and network cultural industries chain) and external factors (political environment, economic environment, social and cultural environment and technological environment).This paper uses a decision tree method, collected valid questionnaires from Shanghai, the decision tree model contains 15 essential factors such as network cultural content creation, online shopping sophistication matching system, and so on. Empirical results show that: the content innovation is the fundamental development factor, the marketing system is the key factor, social and cultural environment is the most important external factor. To promote industrial development, we should speed up the network cultural contents innovation, improve the marketing system and online shopping payment system of network cultural product, and optimize the political, economic, technological and socio-cultural environment, to create a good network cultural ecology.