The provision of Quality-of-service (QoS) guarantees is of utmost importance for the development of the multicast services. These multicast services have been used by various continuous media applications such as the multicast backbone (Mbone) of the Internet has been used to transport real time audio/video for news, video conferencing and distance learning. This paper presents a hierarchical QoS multicast routing protocol (HQMRP) for mobile ad-hoc networks. It can provide QoS-sensitive routes in a scalable and flexible way, in the network environment with mobility. In the proposed HQMRP scheme, each local node just only needs to maintain local multicast routing information and/or summary information of other clusters (or domains), but does not requires any global ad hoc network states to be maintained. The HQMRP also allows that an ad-hoc group member can join/leave the multicast group dynamically, and supports multiple QoS constraints. The paper presents formal description and main procedures for realizing routing decision process of the HQMRP, and the proof of correctness and complexity analysis of the protocol. In also presents a theoretical analysis of the mobility in the mobile ad-hoc network environment. The performance measures of HQMRP are evaluated using simulation. The studies show that HQMRP can provide an available approach to QoS multicast routing for mobile ad-hoc networks.