There is provided a controlling technique for a servo press capable of optimal forming for handling variability in a sheet thickness and material property of a workpiece and for handling each workpiece. A controlling device for controlling a servo press in accordance with a slide motion data includes: measurement equipment for measuring a forming state of a workpiece, attached to a die for forming the workpiece; a measurement result receiving portion for receiving a measurement result sent from the measurement equipment; and a slide motion data changing portion for changing a slide motion data for forming the same workpiece at scheduled measuring time in accordance with the measurement result received by the measurement result receiving portion.