The invention is designed aiming at the field management deficiency of machinery equipment, especially the field management deficiency of machinery equipment for large-scaled production devices. The invention comprises the following steps of classifying by integrating various necessary conditions of machinery equipment, selecting the nearest and the safest places for the machinery equipment according to the number of files stored in the machinery equipment, installing and suspending proper data boxes, which can store all necessary data and information documents for the machinery equipment, including information, report, data, parameters, indexes and other documents required by all professional fields in the machinery equipment field management, inputting a door-opening password on a digital keyboard on the box door when using a document, pulling the handle to open the data box door, and inputting code of the document to be searched to allow the document to eject from a storage shelf, and saving the document into the data box according to a reverse operation after using the document,. For night work and cleaning the box, the inventive data box is also provided with an explosion proof safety lamp and a pneumatic cleaner, and for preventing damage to the data box due to corrosion and high temperature of fire behavior, the inventive data box is also provided with an umbrella and an automatic extinguisher. The inventive data box can remarkably reduce the occurrence of different types of accidents caused by field management error and uncompleted operation due to field management deficiency, especially the field management deficiency of machinery equipment for large-scaled production devices, so as to directly or indirectly, to different extents, recover personal, property and economic losses.