An apparatus for collecting drugs dispensed from drug dispensing boxes includes a main conveyor on which the dispensed drugs are placed and discharged to a first end thereof, and an auxiliary conveyor configured to be hidden at a lower portion of the first end of the main conveyor or to be expanded outside of the first end so as to increase a discharging path of the dispensed drugs. Due to the auxiliary conveyor, when the drugs are discharged or are redelivered to another apparatus, it is possible to control the drugs to fall down to a desired position.