Abstract: Due to the deadlock problem of network on chip,the paper designs a fully adaptive router,which based on the adaptive routing algorithms of virtual network.It mainly introduces the structure of the router's archtecure and algorithm.In the end,a high effective and improved performance router is completed,and is simulated in the 2D Mesh topology NoC.It makes the router deadlock-free adaptive routing come true,,and improving the network throughput,reducing the average network latency.