PROBLEM TO BE SOLVED: To easily check a version of technical drawings.SOLUTION: A technical drawing management device 10 comprises: a code information creation server 40; and a version inquiry server 50. The code information creation server 40 has: a technical drawing input unit 41 that inputs technical drawing data; identification information creation means 42 that creates identification information capable of identifying a version of the technical drawing data; a code information creation unit 43 that creates code information capable of reading the identification information; and an output-purpose data output unit 44 that creates output-purpose data for displaying/printing the technical drawing data and the code information pertaining to the technical drawing data together, and outputs the output-purpose data. The version inquiry server 50 has: a verification-purpose identification information input unit 51 that inputs verification-purpose identification information; a verification unit 52 that compares the verification-purpose identification information with the identification information created by the identification information creation means to verify the version of the technical drawing data; and a verification result output unit 53 that implements an output of information in accordance with the verification result.SELECTED DRAWING: Figure 1
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