目前网络编码感知路由的研究很少考虑节点的能量.由于无线网络的性能受节点能量的影响非常大,延长网络的生存时间非常的重要.本文提出一种基于编码机会和能量的度量,利用这种度量设计了一种基于能量的编码感知路由协议ECAR(Energy-based Coding-aware Routing).仿真实验表明,这种方法可以减少传输能耗,使得网络的负载均衡,延长网络生存时间. At present, the research of network coding perceptual routing seldom considers the energy of nodes.As the performance of wireless networks is greatly affected by the energy of nodes, it is very important to prolong the lifetime of the network.This paper presents a measure based on coding opportunity and energy, Energy-based Coding-aware Routing (ECAR) is an energy-based coding-aware routing protocol. Simulation results show that this method can reduce transmission energy consumption, balance the load of the network and prolong network lifetime.