A low energy uneven cluster protocol design method is proposed. Aiming at the random choosing for cluster head of traditional leach protocol, and the defect of the single hop from all the cluster heads to the sink node, an improved method for leave protocol is advanced. Firstly, the election model of cluster head is improved and the node residual energy is considered in the process of threshold and the cluster head election to improve the whole network life circle. In the multi-hop route, choosing the maximum energy and the nearest node as the next hop and a route transferring data among many clusters is formed. The experiment shows the method having great improvement compared with leach protocol and prolonging the network life cycle.