本文基于蚂蚁的自组织能力描述了一种新的分布式动态路由选择方法 ,针对当前通信网中存在的服务质量问题提出了QoS保证的分布式路由选择算法 (DQRA)。DQRA能以并行的方式解决网络中呼叫的时延和带宽分配问题 ,避免了NP 完全问题。算法简单 ,易于实现 ,能有效地解决大型网络的负载平衡问题。本文选择了OPNET仿真环境对网络进行实时仿真 ,通过和最小代价算法的比较 ,进一步表明了算法的有效性 This paper describes a new distributed dynamic routing method based on the self-organization capability of ants, and proposes a QoS-guaranteed distributed routing algorithm (DQRA) for the existing QoS problems in communication networks. DQRA can solve the problem of call delay and bandwidth allocation in the network in a parallel manner, avoiding the NP complete problem. The algorithm is simple and easy to implement, which can effectively solve the problem of load balancing in large networks. This paper chose OPNET simulation environment for real-time network simulation, and by comparison with the minimum cost algorithm, further shows the effectiveness of the algorithm