Disclosed is an electronic component supply system that determines the kind of electronic components to be mounted on a component pallet at the time of mounting the electronic components on the component pallet on which the electronic components are to be mounted. On the basis of a plurality of jobs planned to be continuously executed by means of a plurality of electronic component mounting apparatuses having the component pallets attached thereto, respectively, and on the basis of the executing order of the jobs, the kind of the electronic components to be mounted on the component pallets is determined such that the number of the component pallets to be replaced when switching the job is minimum.