<p>[PROBLEMS] To continuously enabling prescribed operations at operating positions without stopping the supply of tablet containers and the filling of tablets even when the prescribed operations at the operating positions cannot be performed and also allow the tablet containers to wait at a same wait position even if the sizes of the tablet containers are different from each other. [MEANS FOR SOLVING PROBLEMS] This tablet filling device comprises a tablet supply unit (3) for filling tablets into the tablet containers (12), a carrying member (41) for carrying tablet cassettes (12) from the tablet supply unit (3) to the wait position, a container holding member (65) installed at a delivery position and having a plurality of holding parts (67) and (68) capable of holding the tablet containers (12) according to the outer diameter dimensions thereof, and the other carrying member (52) for carrying the tablet containers (12) held on the container holding member (65) to the operating positions.</p>
