A control device is used for a mounting device with a mounting head including at least a first holder on which a first pickup member is installed, and a second holder on which a second pickup member is installed, and configured to pick up components supplied from a component supply section and mount the components. The control device includes a control section configured to acquire a first deviation amount of a tip of the first pickup member and a second deviation amount of a tip of the second pickup member and select a combination of the pickup members in which an interval between the tips of the pickup members that is obtained based on the first deviation amount and the second deviation amount falls within a predetermined range.