讨论了计算机网络中的控制问题与网络安全。在回顾已有的研究思路的基础上 ,从混合动态系统和模糊神经控制这两个平行的角度提出了网络中控制问题研究的新思路。首先 ,综述了网络中控制问题的概念、特点以及应用前景 ;然后 ,在分析离散事件动态系统理论特点的基础上 ,从混合动态系统角度对路由器模型和数据链路层协议进行建模 ;接着 ,从智能控制的角度讨论了运用神经模糊控制理论开展研究的思路。最后 ,简要回顾和总结了网络安全和服务质量控制问题 Discussed the control problems and network security in computer networks. On the basis of reviewing the existing research ideas, this paper proposes a new idea of ​​control problems in the network from two parallel aspects: hybrid dynamic system and fuzzy neural control. First of all, the concept, characteristics and application prospect of control problem in network are reviewed. Then, based on the analysis of the theory of discrete event dynamic system, the router model and data link layer protocol are modeled from hybrid dynamic system. From the perspective of intelligent control, the idea of ​​using neural fuzzy control theory to study is discussed. Finally, a brief review and summary of network security and service quality control issues