A measurement control method, a UE, and a network-side device are provided to solve the problem in the prior art that no measurement control solution can ensure the UE to perform a measurement and obtain a measurement result in time, as well as reduce the impact of the measurement on the performance of the UE. The method includes the following steps. The UE receives measurement indication information provided by the network side; and the UE performs a measurement after determining that the UE needs to perform the measurement according to the measurement indication information, which ensures that the UE may not perform the measurement frequently but pertinently, and reduces the impact of the measurement on the performance of the UE to the utmost extent.