For the demand of military affairs and treating with calamity, mobile ad hoc networks route protocol has become the issue of utmost priority. In this paper, the AODVSQ (ad hoc on demand distance vector link stability quality of service) is presented, which adopts back-up route mechanism and take bandwidth as QoS (quality of service) parameter. Testified by simulation, this protocol has got a bigger function improvement in the rate of the packet transmission, time delay as well as route expense relative to AODV.