The invention provides a cooperative caching method of content-centric networking. The method comprises the following steps: classifying network nodes to obtain a node cluster with a cluster ID, and performing level setting on the nodes in the node cluster; if that content packets are cached in the current node is detected after the current node receives an interest packet endowed with the cluster ID transmitted by the user terminal, generating a first content packet into which the cluster ID of the interest packet is added, and returning the first content packet through a reverse path of the interest packet; and if a first preset condition is satisfied when an intermediate node receives the first content packet, caching the first content packet by the intermediate node, and continually returning the first content packet through the reverse path of the interest packet when that the first content packet exists in a PIT table is determined. Through adoption of the cooperative caching method, caching is performed by a cluster head node within a network range, and is performed on the basis of network content popularity in the cluster, so that the content diversity of the cluster head node is ensured, and the hit rate and acquisition speed of network contents are increased.