The invention discloses a sleep scheduling method under a wireless power communication network. Common sensor nodes have two states of sleep and activation and the two states can switch between each other in order. When a sum of the obtained power and the remaining battery power is not sufficient to supply the upcoming of the power consumption, the nodes will enter the sleep state, and in the period, there is no need to collect and upload data; the remaining power is provided for the nodes and a CKN algorithm will be carried out, a suitable K value is set, part of the node sleep part is activated, the activated nodes will carry out work of data monitoring and transmission, and finally the data is uploaded to a base station. In the process, when the power received by all the nodes is surplus, the surplus power can be converted and stored in batteries to be provided for node consumption the next time. According to the sleep scheduling method under the wireless power communication network, renewable energy is used as a power acquirement source, the network operation is maintained by modes of wireless power emitting and storage, the time distribution rates of wireless power transmission and data transmission are regulated, and the best power utilization ratio is determined.