A non-connection state measurement method, UE, and a base station are provided. The measurement method according to this disclosure includes: acquiring measurement configuration information, where the measurement configuration information includes one or more frequencies; starting, by the UE in a non-connection state, to perform measurements in the one or more frequencies according to the measurement configuration information; and reporting, by the UE after the UE enters a connected state from the non-connection state, a measurement result obtained from the measurements.