To provide an operator arrangement determining method, an operator arrangement determining device and an operator arrangement determination system for performing optimum operator arrangement by taking into consideration the characteristic and ability of respective operators to make group arrangement when a plurality of operators become a group and cooperate to perform an operation.

This operator arrangement determining method comprises a production planning processing step for inputting data for production planning of a product and calculating operation contents on the basis of the data of the production planning, an attendance information processing step for inputting data of operator attendance information and extracting personal information of operators who have attended on the basis of data of attendance information of the operator, an arrangement rule processing step for inputting data of an arrangement rule in arranging the plurality of operators and calculating arrangement information on the basis of the data of the arrangement rule, and an arrangement determination processing step for determining the arrangement of the operators on the basis of operation contents, the personal information of the operators and the arrangement information.