Abstract:In this paper a new MultiFractal Model (MFM) of Variable Bit Rate (VBR) video traffic is proposed. It makes sure that the approaching performance of the new model (PM-βMFM) has better performance than βMFM and PM-MFM. Meanwhile, a new frame level VBR traffic model base on PM-βMFM is proposed, which is called Composite MWM(CMWM).CMWM considers the correlation structure of I, P, B frame size of VBR video traffic. Simulation result shows that CMCM can depict statistical feature and network performance more accurately than traditional SRD model and LRD model, Simulation result also shows multifractal feature is important in traffic modeling.