To prepare a schedule of an individual unit utilizing e-mail information.

In a work DB, "work" (including information of a work ID, mail, a work name, a time limit, man-hours, priority, a period, a state and publication and the like) of a user analyzed from transmission/reception e-mail content (mail information) is registered. An individual schedule preparation system includes individual schedule preparation means for extracting, after mail transmission/reception, the "work" of e-mail text according to a policy, allocating the "work" to "free time" of a public schedule, and displaying the schedule as an individual schedule.