To solve such a problem that it is necessary to grasp the correction of the condition of inputting data, with which the condition of attendance is provided by reading a card or the like, with the confirmation of an approving person in conventional technology.

This system has a storage part for storing time of attending/ leaving the office at the time of ID card read, data after correction and working attitude information for each employee in processing for determining the condition of attendance management by performing approval on the basis of the data of attending/leaving the office for managing the attendance condition, a display part for displaying the judgement reference of the approving person in processing for determining the condition of attendance management by performing approval on the basis of the data of attending/leaving the office, and an input part for performing approval. Thus, the verification load of troth/ false for the approving person at the time of verification can be reduced.