The invention relates to a routing method of a wireless ad hoc network and belongs to the technical field of networks. According to the routing method, the existing AODV (Ad hoc On-Demand Distance Vector Routing) protocol is improved, and the routing method comprises the following steps of: firstly, sending an explorer packet rather than data after a source node for sending data receives rout response grouping of other intermediate nodes of a non-destination node, requiring the response of a destination node, if the response of the destination node is received, considering that no routing black hole exists on the route, and then sending data; and if the sending node does not receive the response of the destination node, giving up the route and reselecting other routes. In the invention, only by simply modifying the AODV protocol, the purpose of preventing the attack of the conventional route black hole in the wireless ad hoc network can be realized, and the safety of the wireless ad hoc network can be improved.