To provide hopper cover which can prevent impurities such as a residual medicine, dust or the like from attaching to a hopper in a medicine packaging device and can effectively prevent the impurities from mixing into a medicine to be packaged.

The hopper cover is in a medicine packaging device configured to put via a hopper a medicine into a subdivision-packing paper sheet unrolled from a subdivision-packing paper roll comprising elongate subdivision-packing paper wound like a roll and to heat-seal for forming individually sectioned packages. The cover has the approximately same shape as that of the hopper comprising a hollow cylinder with upper and lower ends opened and with an inner diameter of a hollow decreased as coming closer to the lower end opening, and the cover can be detachably mounted on an inner peripheral surface of the hopper.