Abstract: The design of routing protocol in mobile Ad Hoc network is a challenging subject because of its limited node energy and bandwidth.Therefore，multipath routing scheme is considered to balance overload.Two multipath routing algorithms are proposed in this paper.The simple nondisjoint multipath algorithm defines that alternate path is established only by nodes which are those on the primary path or their neighbors.And then the mean length of alternate path decreases.Simulation results show that simple nondisjoint multipath has better performance than node disjoint multipath.It will provide an effective solution for energy efficient and reliable data transportation in wireless network.