On the basis of the shortage of general network path is introduced, combine the working characteristics of passive network, put forward a new routing mode that link is built in a cluster. After sensor nodes in a cluster are waken up, cluster-head links them together to be a Link. Link-head is selected by there leaving energy. The head of link collects all the data, fuses and transfers them to cluster-head. The experimentation shows that the transmission mode can eliminate the data collision and decrease the energy consumption of sensor nodes. Moreover, the new mode averages the sensor nodes’ energy depletion, which can prolong the lifetime of network.