The invention discloses a risk evaluation method of an electric power communication network in the technical field of electric power communication. The risk evaluation method of the electric power communication network includes the steps of first collecting risk evaluation parameters of the electric power communication network, then structuring an index data base and a sample data base through the risk evaluation parameters, and finally training a neural network according to sample data in the sample data base and transferring the trained neural network to calculate corresponding risk value of the electric power communication network of index data in the index data base. According to the risk evaluation method of the electric power communication network, the index data is trained through the neural network, the inductive subjective factor in artificial given index weight is avoided, interference of odd data is avoided through network structure learning and network parameter learning, the quantity of redundancies in hidden layer nodes is reduced, neural network learning time is reduced, network learning speed is improved, corresponding index weight is adjusted automatically when novel risk factors appear, and thus risk evaluation method for the electric power communication network has good adaptivity and high precision.