As a new type of wireless network,routing protocols play an important role in wireless mesh networks.In this paper,a detailed analysis of three typical routing protocols,DSR,AODV and DSDV are presented based on Wireless Mesh Network.In addition,the performance of these three routing protocols in packet delivery fraction,average end-to-end delay,route overhead packets and optimal route option are illustrated using simulation soft NS2,the disparity of performance and applicable network circumstance are also presented.