Abstract: In order to analysis and predict channel damage on network,improve traditional prediction method,adopt a super model of joint damage analysis method of network channel.Match on channel damage parameters and model parameters,analysis method based on time domain features,detailed analysis was carried out on the channel damage process of the gradient.According to prediction results of super model of joint damage analysis method,these provide help for the network channel maintenance.By analyzing the various network,results show that,damage prediction accuracy is greatly increased,have great significance in guiding analysis for network channel.