A method for integrating a many-core processor system with a network router comprises a subnet division step used for dividing an on-chip network into network requests in multiple subnet balance chips, and a network interface device deployment step used for deploying at least one network interface device in a subnet in a distributed mode in order to guarantee optimization of the connectivity between the deployed network interface device and the processor cores in the subnets and to implement rapid data exchange of the on-chip network or the inter-chip network. A many-core processor system integrated with a network router comprises a network router used for network interfacing and data exchange, and comprising multiple network interface devices embedded into the on-chip network in a distributed mode.