The present invention provides a mobile communication method and a radio base station. A mobile communication method includes a step in which a radio base station (eNB) transmits a measurement rule designation command which designates a mobile station (UE) to add or delete a measurement rule, a step in which the radio base station (eNB) transmits a measurement object designation command which designates a mobile station (UE) to add or delete a measurement object separately from the measurement rule designation command, and a step in which the radio base station (eNB) transmits a mapping designation command which designates the mobile station (UE) to associate the measurement rule with the measurement object.