To provide a measuring/packaging/inspecting system capable automatically checking whether all inspecting devices and the entire system are properly functioning (whether they are not malfunctioning, making mistakes in reservation or setting, etc).

The measuring/packaging/inspecting system includes a measuring device 1 for measuring goods and discharging a predetermined weight of goods, a packaging device 200 for receiving and packaging the goods discharged from the measuring device 1, and one or more inspecting devices, 300, 400 and 500, for inspecting products obtained by measuring and packaging operations. This system is provided with a defective production mode in which defective products are deliberately produced by the measuring device 1 and packaging device 200.