The invention relates to a method for evaluating the performance of a transport network. In the process of evaluating the performance of the transmission network, the present invention acquires corresponding network security and stability performance parameters, network management and maintenance parameters, and network resource utilization parameters, including the degree of security and stability, whether resources are optimized for use, whether they are convenient for management and Maintenance analysis to obtain the transmission quality of the transmission network, that is, the performance of the transmission network. Therefore, the present invention provides a comprehensive, systematic and precisely quantified assessment scheme for transmission network optimization. Through this assessment scheme, network operators can comprehensively and quantitatively grasp their own network conditions, and can accurately locate the development of existing networks. Key factors such as short boards (that is, bottleneck points), problem points, network security, and stability, so as to propose targeted network optimization schemes with less investment and good effects, and comprehensively optimize the transmission network through the optimization schemes.