Disclosed are a downlink control information sending method and apparatus, and a downlink control information processing method and apparatus, which are used to give, by means of downlink control information based on a user group, a notification of energy conservation information of the user group, thereby increasing the utilization rate of resources and guaranteeing the flexibility of scheduling by a base station. The downlink control information sending method provided in the present application comprises: determining user group-common downlink control information (group-common DCI), wherein the group-common DCI is used to indicate energy conservation information of at least one terminal; and sending the group-common DCI to the terminal.