Wireless Sensor Networks (WSNs) are used in health monitoring, tracking and security applications. Such networks are usually applying to be able to transfer data from specific areas to a nominated destination. For this aim, sometimes, sensor nodes transmit their sensed data through multiple hops. Each sensor node acts as a routing element for other sensor nodes for transmitting data, which can increase energy consumption. Hence, proposes a novel reliable routing protocol for WSN to extend the network lifetime. In the protocol, each sensor node selects the optimized path for forwarding packets to the base station based on routing metrics. This paper deals with using type-2 fuzzy logic for minimizing the effects of uncertainty produced by the environmental noise.