To provide working management regarding short-term workers, part-timers and temporary workers and various service sites regarding the short-term workers, part-timers and temporary workers.

This service site supply system comprises an individual identification means 1 for the short-term workers, part-timers and temporary workers, a database 2 for storing individual identification data identified by the individual identification means via a communication means 5, an Internet information terminal means 3 for displaying the individual identification data stored in the database via the communication means 5, a working management means 4 for inputting working hours and working days, and a service site supply means 6 for supplying the service sites regarding the short-term workers, part-timers and temporary workers. The system accumulates the working data of the working management means 4 in individual identification data of the database 2 via the communication means for every fixed period while supplying the service sites of the service site supply means 6 to the Internet information terminal means 3.