To provide a weight sorting apparatus which reduces an installation area by miniaturizing the whole apparatus by reducing component members, does not need the intervention of hands, and does not damage an object to be sorted.

The weight sorting apparatus has a hopper part 100 for measuring the weight of the object arranged in the upper part and a sorting part 200 the inlet of which is positioned to touch the outlet of the hopper part 100 and which sorts the object arranged relatively in the lower part corresponding to its weight. The hopper part 100 has a load cell 4, a solenoid member 6 for a gate plate, a measuring pan member 7, a link member 8, a gate member 9, and a control means.