In order to balance energy consumption of wireless sensor networks node

to prevent premature energy depletion of some nodes

a network lifetime prolonging opportunity routing（PLOR） is introduced.Aiming at transmission mechanism of opportunistic routing

according to energy model of node

consider node ETX and residual energy（RE）

propose a routing metric EC and a selection strategy of candidate forward node set based on it.In coordination forwarding of candidate forward node

use method of data packet sequence list（PSL） to increase success rate of transmission coordination.Simulation experiments show that

compared with ExOR

PLOR further improve throughput and reduce energy consumption

especially significantly improve network lifetime.