The present invention provides a tablet-inspecting device in which the control unit gives, to the continuous drug packet-driving unit, operation instructions to move the continuous drug packet from an upstream side to a downstream side of the conveyor path, and reciprocating operation instructions to alternately move the continuous drug packet to the upstream side and the downstream side of the conveyor path, the control unit gives, to the rod control unit, rod unit pressing operation instructions to press the rod unit against the side portion of the drug packet, and when the control unit gives the reciprocating operation instructions, the rod unit pressing operation instructions has been given, it is possible to enhance determining precision of the number of tablets or the kinds of tablet, and to stably inspect drugs.
