To provide a vial container feeder capable of preventing excessive charge of vial containers by an operator.

The vial container feeder 3 is equipped with a storing container 12 to store the vial containers 2, a discharging unit to discharge the vial containers 2 in the storing container 12, and a throw-in port 12b to supply the vial containers 2, and further comprises a door 14 to open/close the throw-in port 12b, a regulating plate 15 to be movable to the regulation position at which the regulating plate is advanced into the storing container 12 to separate the inside of the storing container 12 into a supply limiting space B on the discharging unit side and a supplying space A on the throw-in port 12b side and the evacuation position at which the regulating plate is evacuated from the storing container 12, and first link mechanisms 17, 18 and 22 to move the regulating plate 15 to the regulation position connected with the opening operation of the door 14 and to move the regulating plate 15 to the evacuation position connected with the closing operation of the door 14.