Abstract: Directed Diffusion (DD) is an energy-efficient data dissemination scheme in order to extending the lifetime of the wireless sensor networks. However, original DD is based on shortest path routing, which will deplete quickly the energy of nodes lying along the often used optimal paths. To avoid this, this paper extends DD based on the idea of energy equivalence. A source routing Directed Diffusion (SR-DD) is proposed in order to avoid local "hotspots" which DD possibly forms. The sink chooses one from several paths based on the residual energy along them. The basic idea behind our routing selecting algorithm is that when all nodes in all possible paths have sufficient residual energy, a path with minimum total transmission energy among these paths is chosen and if all paths have nodes with low energy, max-min residual energy path is chosen, which tries to strike a balance between the minimum transmission energy and the energy consumption equivalence. The label switching technique is used to route the reinforcement messages to the source, which avoids the overhead of transmitting all nodes identifiers along the path. Simulation results show that SR-DD outperforms DD in uniform energy utilization.