To provide a method for assigning a work to workers work capable of assigning a new work to workers who can deal with the work, and more accurately notifying the workers of information related with the new work.

A management server 11 extracts workers who can deal with a new work from the scheduled start time, scheduled end time, and working position of a new work, and the work schedule, work records, and position of the workers and the working position of the work just prior to the new work. Then, the workers who can be deal with the new work are displayed on the display of a management computer 14, and the workers are assigned with the work by a work instructor. The management server 11 generates an electronic mail for notifying the workers of the new work, and transmits the electronic mail to a work terminal 12 to be used by the workers to when the new work is assigned.