PURPOSE: To provide a data shift device which can simplify the data shift conditions and can shift the data satisfactorily way.

CONSTITUTION: A data shift device which shifts the data on plural works 1 set on a production line consisting of plural processes in response to the shift of each work 1 is provided with the visual means 7, 8 and 9 which monitor the states of jigs 2 and 3 prepared for a work 1 and a process respectively, an image processing means 10 which confirms the shift of the work 1 based on the images recognized by the means 7-9, and a data shift means 6 which shifts the data on the work 1 after the means 10 confirmed the shift of the work 1.