PURPOSE: To provide a maintenance work supporting equipment capable of reducing the load of maintenance persons in preparing the maintenance work, and making a correct judgment on the measured results.

CONSTITUTION: A stipulated value data control device 2 is provided with a communication part 2b to transmit the instruction to change the stipulated value to a terminal device 3, and the terminal device 3 prints the data on the current stipulated value received through a communication part 3c as the bar code by a bar code printing part 3i. A servicing person reads the data on the bar-coded stipulated value attached in the vicinity of the part to be measured by a bar code reading part 3h, and the data on the measured value for the part to be measured are inputted using an input part 3e. The data on the read stipulated value are compared with the data on the inputted measured value by an operation part 3f and a comparison part 3g, and the results are displayed on a display part 3b.