<FONT face=Verdana>Proposes unequal clusters of routing algorithm based on divided virtual region for “thermal region” in the wireless sensor network。The routing algorithm gives the task of clusters divided to sink node with non-limited energy

therefore

the scale of inside cluster layer which near the sink node is smaller than outer layer cluster。To realized the distributional election work of cluster head and avoided energy consumption in each wheel

we take main and vice cluster head into the structure of clusters。 The ARMA forecast model has been intruduced into the switch process of main cluster head

therefor it has not only avoided main cluster head dies because of energy consumes completely

but also avoided the network divided as well as the short life of the network caused by the death of main cluster head。 Compared with the tradition routing algorithm， the simulation result in the NS2.26 indicated that this routing algorithm prolonged the life of WSN。