To obtain a package aging system where another package can be thrown in and aged without stopping the entire system by providing every group of a plurality of packages to be tested with an individually controllable power supply and an aging start/end button.

A control section 1 receives a signal from the ON/OFF section 4 of each of n blocks to be aged, controls ON/OFF of a power supply 2 for a package to be tested mounted at a mounting part 3 and manages elapse of aging time. The control can be performed individually for the blocks 1-n. Upon finishing aging of a block 1, for example, the control section 1 interrupts power supply to a package to be tested mounted on the block 1 based on a signal from the ON/OFF section 4. The package is then taken out from the mounting part 3 and another package to be tested can be mounted on the block 1 even when other blocks 2-n are under aging without having any effect thereon. Consequently, work efficiency can be enhanced.