Embodiments provide a terminal control method, a radio network controller, and a base station. The method includes: determining, by an RNC, that a downlink serving base station of a terminal that establishes a connection with both a macro base station and a micro base station is the macro base station; acquiring, by the RNC, a target power control value, where the target power control value can be used to ensure that channel quality of an uplink control channel from the terminal to the macro base station reaches a target threshold; and sending, by the RNC, the target power control value to the micro base station.