A　new　energy　equalization　algorithm　based　on　HEED　algorithm　is　proposed　to　solve　the　problem　of　energy　consumption　imbalance　and　extend　the　lifetime　of　wireless　sensor　networks.　The　algorithm　chooses　the　cluster　head　according　to　the　HEED　algorithm　of　the　cluster　head　election,　and　then　graded　the　cluster　head　according　to　the　distance　to　the　basestation.　The　Dijkstra　algorithm　using　energy　and　distance　as　composite　weights　is　introduced　in　the　data　transmission　between　clusters.　Finally,　through　theoretical　analysis　and　simulation,　it　is　proved　that　the　algorithm　has　a　good　effect　on　controlling　the　energy　consumption　of　wireless　sensor　networks　and　prolonging　their　lifetime.