A tablet supply apparatus including a main body having a case accommodating unit at the upper portion thereof, plural tablet cases that are secured in the case accommodating unit and in which tablets are accommodated, a chute through which tablets discharged from each of the tablet cases drop, a hopper that is disposed below the chute and provided in the main body, a filling device for filling tablets received by the hopper into a container, and at least one tablet feeder for freely putting into the hopper tablets whose kinds are other than the kinds of the tablets accommodated in the table cases. The tablet feeder has an opening for putting tablets, a shutter for temporarily trapping the tables put from the opening and a switch for opening the shutter, and is designed so that the put tablets on the shutter are visually recognizable.