A measurement support system includes a measurement device and a management device connected to the measurement device via a communications network. When the measurement device uses consumable materials such as reagents, the management device manages the stock of consumable materials, supplies the consumable materials, and corrects measured data in accordance with the state of the consumable materials. Thus, the measurement support system can reduce the burden on users of the measurement device. The reagents that are used in measurement by a personal measuring instrument (3) located at each of patients' homes (B, C, . . . ) are assigned a reagent ID number beforehand. This reagent ID number and measured data are transmitted to a host computer (1) of a medical institution (A). The host computer (1) determines the stock of reagents based on the consumable material identifier received from the personal measuring instrument (3) and ships the reagents to the patient's home when the stock is running low. The host computer (1) also corrects the measured data in view of a calibration curve and degradation based on the production lot information of the reagents stored in correspondence with the reagent ID number.