Abstract: 2010 witnessed significant development of China’s trinetworks integration. Since then, related technical issues, interests and regulations have drawn much attention from the public and the development mode of trinetworks integration has also become a central issue for discussion and debate among many circles. Based on actornetwork theory, this study of trinetworks integration in Shanghai shows that the city has created a model that combines exogenous and endogenous development, that is, “process controlled by the industrial sector, decision making led by government and selected by industry sectors”. As is demonstrated in the network configuration, the “pseudo replacement” that occurs in Shanghai’s trinetworks integration helps to create well balanced resources pools which foster the development of trinetworks integration. The case study also suggests that it's urgent to develop “toplevel” designing in system and institutions. Besides, the actornetwork theory, if it is to serve as a research paradigm for trinetworks integration, needs to be further developed and refined in order to better address such issues as the segmentation of the internal and external space, the discrimination of endogenous and exogenous factors and the assessment of the size and number of networks as well as the power of the government etc.
Key words：

Key words:  trinetworks integration, actornetwork theory, development model;, translation