A radio parameter control method is performed by a control device that includes a memory and a processor, for a plurality of base stations constituting a radio network. The method includes: collecting radio environment information in the radio network and communication quality information for each communication area provided by each of the base stations; determining whether to perform radio parameter control based on the communication quality information; calculating a radio parameter for at least one of the base stations based on the radio environment information in a case where it is determined that the radio parameter control is to be performed; and setting the calculated radio parameter in said at least one of the base stations.