In a consumables supply management system in which clinical test analysis devices (1) in medical institutions (A, B, . . . ) and a computer (2) of a consumables supplier (C) are connected via a communications line (10), operation status data including information on the status of consumption of the consumables in the clinical test analysis device (1) are transmitted to the computer (2) via the communications line (10). The computer (2) has previously stored data on the inventory of consumables in each medical institution, and determines the quantity of consumables consumed in each medical institution based on the operation status data that are received, updates the consumables inventory data, and if necessary, carries out the procedures for supplying an appropriate quantity of consumables.