Abstract：With the increasing number of network people and internet application, network traffic data become the characteristic of multi-fractal.Focusing on the character, a hybrid model based on the wavelet transform and ARMA model is proposed.The original data are transferred into 4 layers data by Matlab algorithm, and ARMA models apply in each layers data to predict the future data.Then we reconstruct them into the predicted network data.By applying the data collected in a real network environment, the simulation experiment on the hybrid model is taken.The experiment result shows that the hybrid model has higher accuracy on network traffic predication and is practical on network management and optimization.

Keyword：network traffic prediction;wavelet transform;ARMA model;multi-fractal;