PROBLEM TO BE SOLVED: To provide a multi-point measurement data acquiring device, a multi-point measuring system, and a method for acquiring multi-point measurement data capable of collecting the positions of a plurality of sensor units buried in a field, after the installation. SOLUTION: The multiple-point measurement data acquiring device includes: an information extracting unit that extracts, from responses returned by a plurality of sensor units fixed to a single transmission path via the transmission path respectively, information including transmission path lengths from positions to which the respective sensor units are fixed up to one end of the transmission path, and bent directions of the transmission path at the fixed positions of the respective sensor units; and an arrangement estimating unit for estimating the arrangement of the plurality of sensor units based on the information extracted by the information extracting unit. COPYRIGHT: (C)2012,JPO&INPIT