A product storage apparatus for collectively storing processed products includes an endless loop member that is circularly moved along a path, plural holders each of which is fixed to the endless loop member with a predetermined pitch and holds the processed products, and a drive unit that circularly moves the endless loop member to circularly move the plurality of holders intermittently by stopping the endless loop member temporarily at every move by a mathematical product of the pitch and a natural number n. According to the product storage apparatus, it is possible to store the processed products with high space efficiency.