Numerical value monitoring device of processing machine

The utility model discloses a numerical value monitoring device of a processing machine. The processing machine can measure processed workpiece to obtain measured numerical values, each measured numerical value has a corresponding address on the processing machine. The numerical value monitoring device comprises a control unit which can seize and store the measured numerical values of the processing machine, and an input unit, a display unit, an output unit and a monitoring unit which are respectively and electrically connected with the control unit. When the processing machine finishes the processing and measurement of the workpiece, the control unit seizes and stores the measured numerical values simultaneously, the stored numerical values can be queried by operators, problems can be quickly and easily found and solved, and the monitoring unit can monitor parameters and states of the processing machine.