Abstract: In Ad hoc networks，multipath routing is better suited in the stability and load balance than single path for its mobility and topology variability．Whereas the limitation of energy in Ad hoc network ，a new multipath routing scheme which is based on DSR is proposed .The scheme utilizes the power drain rate and predicts the lifetime of link, finds some effective paths and sends data through these paths.The simulation result shows that the protocol is superior to DSR in throughput and end to end delay．