Abstract: In order to reduce the energy consumption of wireless sensor networks, and to meet the specific needs of delay, the front end equalization in multi scene partitions for the WSN receiver wakes up strategy is proposed. Firstly, we constructed thediagram of unit energy consumption and analog front-end sensitivity, got the four characteristic interval, and analysis the characteristic, then all the scene parameters is simplified as a single scene of constant to calculat the balance line for network wake receiver; Secondly, along the balance line, we took the search from the the lower left corner to the upper right corner of the relationship map between energy consumption and analog front end sensitivity in different scene area, and selected the best analog front end operating point, that is, the best to wake up the receiver; Finally, the advantages of the proposed method in energy saving and delay guaranteed are verified by comparing experiments in the simulation examples.