The invention belongs to the field of NDN, and specifically relates to an NDN (Named Data Networking) route system based on content clustering, and a clustering query method therefor. The system comprises a cluster-head node information base which is used for storing the information of each class cluster: class cluster name ClassName and class cluster node ID; an in-cluster node information index table which is used for recording the information of nodes in class clusters: node ID, node name NodeName, access times Times, and updating time UpdateTime. Each class cluster has one in-cluster node information index table corresponding to the class cluster. According to the invention, the system and method achieve the clustering of NDN, and divide the NDN into a plurality of types according to different content types, thereby forming class clusters. The system and method achieve the direct positioning of contents, reduce the transmitting times of requested interest packages, improve the route efficiency, and are easy for network management and maintenance.