To calculate the compensation of a leased employee in an achievement result principle type company and an adjusting compensation that a leasing company pays.

In a company that receives a leased employee from a leasing company and pays compensation to the leased employee according to the result but pays standard compensation to the leased employee if the compensation calculated from the results of the leased employee goes below predetermined standard compensation, a compensation management system for managing the compensation to the leased employee comprises a compensation calculation means 70 for calculating the compensation based on the result of the leased employee, and an adjusted compensation calculation means 71 for calculating the difference between the standard compensation and the calculated compensation as the adjusted compensation that the leasing company pays, when the compensation calculated by the compensation calculation means 70 goes below the standard compensation.