The invention discloses an electric power communication network performance state real-time assessment method and system. The assessment system comprises a real-time collecting subsystem, a data storage subsystem, a network performance parameter real-time analysis subsystem and a network performance state real-time assessment subsystem. The real-time collecting subsystem collects basic information and alarming information of communication equipment in the electric power communication network in real time. The data storage subsystem carries out data screening and storing on the basic information and the alarming information, collected in real time by the real-time collecting subsystem, of the communication equipment. The network performance parameter real-time analysis subsystem carries out statistic analysis on the real-time alarming information stored in the data storage subsystem. The network performance state real-time assessment subsystem carries out assessment on reliability and effectiveness of the communication equipment. According to the method and system, data are directly taken from an electric power communication network management system, information is collected in real time completely, assessment results can reflect the latest network performance state, during a network performance state assessment process, network configuration information manual inputting is of no need, and accordingly the system has strong dynamic nature and expansibility.