Heterogeneous network convergence is the inevitable trend of information and communication technology, which is the basis for modern service industry. In order to solve the the consistency of network convergence and multi-access multi-terminal requirements, a novel system architecture of converged network network-based integration architecture base on adaptation layer is proposed to set up the user-centric heterogeneous platform for the applications of modern service industry. Furthermore, the logic framework and the physical topology of system platform are also brought forward. The network architecture based on adaptation layer has been applied in the modern service industry, which shows that the architecture can effectively settle the consistency of cross-network and cross-terminal system to ensure network QoS performance and enhance the user experience.