A processing control device controls a tool for processing a first workpiece. The processing control device includes a driving unit to drive the tool, an output unit, and a control unit to control the driving unit and the output unit. Processing information obtained by performing preliminary processing on a second workpiece before performing first processing on the first workpiece is transmitted by the control unit to the output unit and accordingly the processing information is outputted from the output unit. The control unit generates a control command for performing second processing that is performed on the first workpiece after the first processing. The control unit controls the driving unit according to the control command.