In recent years, along with more and more the deployment of the large-scale wireless network, Wireless Mesh Network(, WMN) is more and more valued by people, especially the emergence of Wireless Mesh Network satisfied a social demand more, its conduct and actions a kind of new network structure, just become a hotpoint in the research of next generation wireless access .But people discover the Wireless Mesh Network exists some baffling when large-scale deploied in actual, especially multiple hops problem, this problem cause of bandwidth degradation, radio interference and network latency.etc., these problems make the performance of Wireless Mesh Network descend a lot.This thesis according to this hot technique of Wireless Mesh Network day by day mature background, on the foundation of comprehending the basic theories of Wireless Mesh Network , we emphasizes a rightness how to keep enough bandwidth and band rate in much jump of the Mesh network environment in certain analysis and research. through the experiment test and carried on certain data analysis, put forward of construct a kind of new structure to solve this problem.Take the applied aspect of Wireless Mesh Network, we combine the point of this text research problem and the construction present condition of wireless city in the home and abroad, elaborate outstanding position of Wireless Mesh Network in the construction of wireless city and how to consruct a wireless city. Explain the important meaning of Wireless Mesh Network in the next generation wireless network.