分析研究AODV协议本地修复算法的特点，并对其进行改进，形成了改进的AODV路由协议本地修复算法-A new idea about local repair is used to improve the AODV and formed the Improved AODV algorithm.Otherwise，a new approach is proposed for flooding limit.The approach is implemented by using cross-layer design,which limits the flooding procedure of RREQ packets in AODV routing protocol.