Embodiments of the present invention provide a method for sending uplink control information, and a terminal. The method comprises: a terminal determines, according to first instruction information sent by a base station, a first time resource that is located on a target carrier and that is used for sending uplink control information; the terminal determines, according to second instruction information sent by the base station, a second time resource that is located on the target carrier and that is used for sending downlink data, the first time resource at least partially overlapped with the second time resource; and the terminal determines a third time resource used for sending the uplink control information, the third time resource following the second time resource and having a preset time interval with the second time resource.