A radio parameter control apparatus for controlling a radio parameter of radio cells, the radio parameter control apparatus comprising: evaluation targeted radio cell selection means configured to: predict radio quality of each of the radio cells when it is assumed that the radio parameter will be changed to a candidate value, using measurement information, including radio quality of the control targeted radio cell, which is collected from radio terminals taking a control targeted radio cell as a serving cell, to predict a predetermined number of radio cells with predicted high radio quality as a connection target radio cell, and select evaluation targeted candidate radio cells from the predicted connection targeted radio cells, or, predict radio quality of each cell when it is assumed that changing the radio parameter to the candidate value, using measurement information, including radio quality of surrounding radio cell of the control targeted radio cell, which is collected from radio terminals taking a control targeted radio cell as a serving cell, to predict a predetermined number of radio cells with high radio quality as the connection target radio cell, and select the surrounding radio cells when the connection target radio cell is the control targeted radio cell, as the evaluation targeted candidate radio cells, and select an evaluation targeted radio cell from the evaluation targeted candidate radio cells, for evaluating an influence of the radio parameter of the control targeted radio cell on the selected evaluation targeted radio cell; and radio parameter control means configured to control the radio parameter of the control targeted radio cell based on radio quality or communication quality of the evaluation targeted radio cell. evaluation targeted radio cell selection means configured to: predict radio quality of each of the radio cells when it is assumed that the radio parameter will be changed to a candidate value, using measurement information, including radio quality of the control targeted radio cell, which is collected from radio terminals taking a control targeted radio cell as a serving cell, to predict a predetermined number of radio cells with predicted high radio quality as a connection target radio cell, and select evaluation targeted candidate radio cells from the predicted connection targeted radio cells, or, predict radio quality of each cell when it is assumed that changing the radio parameter to the candidate value, using measurement information, including radio quality of surrounding radio cell of the control targeted radio cell, which is collected from radio terminals taking a control targeted radio cell as a serving cell, to predict a predetermined number of radio cells with high radio quality as the connection target radio cell, and select the surrounding radio cells when the connection target radio cell is the control targeted radio cell, as the evaluation targeted candidate radio cells, and select an evaluation targeted radio cell from the evaluation targeted candidate radio cells, for evaluating an influence of the radio parameter of the control targeted radio cell on the selected evaluation targeted radio cell; and predict radio quality of each of the radio cells when it is assumed that the radio parameter will be changed to a candidate value, using measurement information, including radio quality of the control targeted radio cell, which is collected from radio terminals taking a control targeted radio cell as a serving cell, to predict a predetermined number of radio cells with predicted high radio quality as a connection target radio cell, and select evaluation targeted candidate radio cells from the predicted connection targeted radio cells, or, predict radio quality of each cell when it is assumed that changing the radio parameter to the candidate value, using measurement information, including radio quality of surrounding radio cell of the control targeted radio cell, which is collected from radio terminals taking a control targeted radio cell as a serving cell, to predict a predetermined number of radio cells with high radio quality as the connection target radio cell, and select the surrounding radio cells when the connection target radio cell is the control targeted radio cell, as the evaluation targeted candidate radio cells, and select an evaluation targeted radio cell from the evaluation targeted candidate radio cells, for evaluating an influence of the radio parameter of the control targeted radio cell on the selected evaluation targeted radio cell; and radio parameter control means configured to control the radio parameter of the control targeted radio cell based on radio quality or communication quality of the evaluation targeted radio cell.