There is provided a distributed medicine supplying device, which allows medicines to be distributed at a time relative to a plurality of prescription data and to be distributed appropriately in response to various types of requests. The distributed medicine supplying device includes: a receiving unit 7 for receiving prescription data; a storing unit 8 for storing an assignment condition to medicine to be accommodated in measures 4 of a tray 5; a central processing unit 10 for determining a position of the medicine to be distributed to each of the measures 4 of the tray 5 in accordance with the assignment condition stored in the storing unit 8 based on the prescription data 12 sequentially received by the receiving unit 7; and a displaying unit 9 for displaying the distribution position determined by the central processing unit 10.