The present invention relates to a tablet feeding device for supplying tablets accommodated in a tablet feeder to vials by supplying a power source from a surface side of the tablet feeder to a rotor of the tablet feeder and further allowing many tablet feeders to be mounted with high density.The tablet feeder 21 has a stationary guide member 119 having a stationary tilt plate 119c and a movable guide member 121 having a movable tilt plate 121c. The stationary tilt plate 119c is disposed adjacent to a tablet outlet 112 of the tablet feeder 21 and guides the tablets discharged from the tablet outlet 112 to the vials 4. The movable tilt plate 121c is movable between a receiving position and an operating position in association with an attachment and detachment of a driving means 202 with the tablet feeder 21. The movable tilt plate 121c overlaps with the stationary tilt plate 119c at the receiving position and continues to the stationary tilt plate 119c at the operating position. The tablet feeder 21 positioned below is formed with a cutout 118 into which the movable member guide member 121 enters when the movable guide member 121 of the tablet feeder 21 positioned above is moved to the operating position.