Abstract: Wireless sensor network is comprised of several sensor nodes which have been organized in terms of their application requirement. They recognize incidents, collect and transfer information. This type of network is in the exposure of the numerous challenge depending on the network surroundings. Environmental factors, typical breakdowns and hardware/software problems influence the network operation directly. Perhaps, the routing protocols of simple structures, the destruction of one node or some is not so sensible whereas in the clustering structure the destruction of a cluster head can induce the loss of information of some nodes in the network. The recommended protocol, hence, pursuits a way to increase the fault-tolerant of the cluster head in the cluster network. At first, paying attention to the improvement of the cluster structure and producing a balance in the density of the cluster cause to postpone the death time of the cluster head node and lessen the collision and prevent networks cutting into fragments due to the lack of the energy balance in clusters. The innovation in this stage is formed by using two fuzzy logic systems. One in the phase of evaluation of the cluster head chance and the other in the phase of producing balance and the nodes migration to the qualified clusters to increase balance in the clusters, In the next stage, the focus is on the recognizing and repairing the cluster head fault by checking the vitality of the cluster head node and also determining the backup node in time slices using fuzzy logic system. Increasing the network life time and reducing the number of the dropped packages of the network as a result of simulation demonstrate that the recommended method has acted more successfully than the existing clustering algorithms and algorithms which use fault-tolerant system.