Abstract: The conventional load balancing scheme for multipath network is impossible to provide in advance the predicted information before changing the state of the network. To solve the problem, a new load balancing scheme is proposed on PPLR (predictive path loss rate). Taking the packet loss rate of each and every path as observing value through relevant measurement, the time-fixed sequential prediction is introduced into the scheme to distribute load in accordance to PPLR. In addition, the packet loss rate is used as the penalty function of the distribution ratio of traffic flow through every path when readjusting load balancing, thus leading the flow to the paths at low packet loss rats. Results of analysis and simulation verified that the scheme proposed can balance load effectively and reduce the multipath packet loss rate.