The invention discloses a clustering routing method and a clustering routing system. The method comprises the following steps of: by an aggregation node, acquiring a first number, dividing the area where the plurality of wireless sensor network WSN nodes are located into the first number of cluster areas; in the first round, determining the WSN node with the largest energy in each cluster area asthe cluster head node of the cluster area, and broadcasting the cluster head node identification information of each cluster area to each WSN node of the cluster area, wherein the area where the WSN node is located is divided into the first number of cluster areas, and one WSN node in each cluster area is selected as the cluster head node, thereby balancing the distribution of the cluster head nodes and the WSN nodes as much as possible, balancing the node energy loss, and extending the life cycle of the wireless sensor network.