PROBLEM TO BE SOLVED: To solve such the problem of bothering connecting a data logger box in which information is recorded to a personal computer of own home etc. to implement data processing when creating a work map.SOLUTION: A tablet terminal device 2000 includes: a transceiver unit 2100 for receiving work information 2220 and location information 2210 transmitted by a work vehicle communication part 1400 during work of a work vehicle 1000; a memory 2200 for recording the received work information 2220 and location information 2210; and a central arithmetic unit 2300 for creating the work map 2230 based on the correspondence relationship between the recorded work information 2220 and the recorded location information 2210.
