根据系数矩阵和系统稳定性之间的关系,讨论了二阶多智能体系统的一致性问题.首先,借助线性多智能体系统的一些结论得出二阶多智能体系统在无领导者的情形下一致性问题的判定条件;然后,基于文献[1]的结论将其推广到有领导者的情形;最后,通过仿真结果来支持理论结果的正确性.“,”Based on the relations between the coefficient matrix and the system stability,the consensus problems of second-order multi-agent systems are discussed in this paper.Firstly,some conditions about the leaderless consensus problem of second-order multi-agent systems are obtained by using the results originated from the linear multi-agent systems.Secondly,the works proposed in Ref.[1] are extended to the leader-following case.Finally,simulation results are presented to support the correctness of theoretical results.