Authentication method of distributed wireless Ad Hoc network

The invention relates to an authentication method of a distributed wireless Ad Hoc network, comprising the concrete steps of (1) authenticating the user that first accesses system by the group leader;(2) for the user that has already existed in the network and wants to access other nodes of the network, passing authentication directly, and updating the neighbor table information;(3)for the user that accesses network again after offline, carrying out access authentication by the other access nodes;(4)for the user that has ever been refused and exists in a blacklist, when the refused frequency of request reaches the refused access frequency, refusing authentication directly and recording the to-be-accessed node in the blacklist; if the refused frequency is less than the refused access frequency, carrying out authentication according to the authentication process; and if the user is refused again, increasing the refused frequency by one, and recording in the blacklist. Each node of the invention all has authentication function, the propagation path of the authentication data is short, and the authentication speed is fast. Moreover, the authentication data is dispersed in different nodes, and the robustness of the system is very strong.