PROBLEM TO BE SOLVED: To provide a medicine supply mechanism and a medicine packaging device, allowing a user to easily classify medicine with good accuracy.SOLUTION: This medicine supply mechanism includes: an under tablet having distribution squares of (m-columns×n-stages), the top and bottom of which are opened and a shutter unit for opening or closing the bottom openings of the distribution squares. The mechanism includes a lid member capable of opening or blocking the top openings of the distribution squares of (m-columns×n-stages) stage by stage. In one embodiment, the lid member is capable of shifting between the position for opening the top openings of all of the distribution squares of (m-columns×n-stages) and the position for blocking the top openings of all of the distribution squares of (m-columns×n-stages) stage by stage.COPYRIGHT: (C)2010,JPO&INPIT【課題】ユーザーが薬剤の仕分け作業を容易に且つ精度良く行うことができる薬剤供給機構及び薬剤分包装置を提供する。【解決手段】上方及び下方が開口とされたm列×n段の分配桝を有するアンダータブレットと前記分配桝の下方開口を開放又は閉鎖するシャッターユニットとを備えた薬剤供給機構であって、前記m列×n段の分配桝の上方開口を段毎に開放又は閉塞可能な蓋部材を備える。一形態においては、前記蓋部材は、前記m列×n段の全ての分配桝の上方開口を開放する位置と前記m列×n段の全ての分配桝の上方開口を閉塞する位置との間で段毎に位置変更可能とされる。【選択図】図6