Route establishing method and device for mobile Ad hoc network

The invention discloses a route setup method for a wireless Ad hoc network, which comprises the following steps: each node in the wireless Ad hoc network regularly broadcasts a Hello message, and nodes which receive the Hello message all maintain a neighboring node list and records the connection state between the current node and the neighboring nodes including a communication state and a interruption state; received signal quality parameters of the neighboring nodes are acquired and the connection state of the corresponding neighboring node is adjusted in accordance with the signal quality parameters; and when a certain node receives a routing request, the connection state of the neighboring node list is read, and the routing request to the neighboring node is forwarded to set up corresponding route in the case of communication state and the routing request is discarded in the case of interruption state. The method can improve route setup stability and reduce route setup update time, so as to satisfy the requirements for real-time voice service.