PURPOSE: To obtain a method for overlapping packed bags in which the packed bags in the quantity of two, three or more can be laid in overlapping one after another without fail and without allowing the overlapped bags to become disordered.

CONSTITUTION: For laying packed bags W other than the last one in overlapping, a shuttle-type belt conveyer 10 is extended toward a place above a receiving belt conveyer 20, and is stopped by a stopper 30. Then, driving of the shuttle-type belt conveyer 10 is stopped and the conveyer is contracted and at the same time, operation of the stopper 30 is put off, letting the packed bag drop onto the receiving belt conveyer. The bag is then forwarded in stepped- feeding by the receiving conveyer 20. By repeating the same operation until the last packed bag W is dropped onto the receiving conveyer, a plurality of packed bags W can be laid in overlapping over the receiving belt conveyer 20 and after that, the receiving belt conveyer 20 is driven in delivery operation and the bags are forwarded for delivery.