Method and device for optimizing user energy consumption efficiency

The invention discloses a method and a device for optimizing user energy consumption efficiency. Particularly, a user device transmits information related to the energy saving corresponding to the user device to a corresponding network device; the network device is determinedly activated or determines to activate an activity timer corresponding to the user device in an NAS idle state; when the activity timer is determined to be activated, the network device determines activation assignment in the configuration information of the activity timer according to the energy saving related information or the auxiliary reference information of the activity timer; and the network device transmits the configuration information of the activity timer to the user device. That the network device is enabled to perform energy saving configuration processing according to the practical application needs of the user device not only further optimize the energy consumption efficiency of the user device, but also improve the management efficiency of the energy saving control of the user by the network device.