Abstract: An apparatus for supplying constant amount of ceramic batches includes a cylinder having a cover adapted to be opened for receiving ceramic material in the cylinder and closed and locked when the ceramic material is compressed, a piston telescopically moving in the cylinder with a clearance therebetween, a taper portion provided on the cylinder and tapered toward a discharge opening of the taper portion to compact the ceramic material compressed by the piston toward the taper portion, and cutting means at the discharge opening. With this apparatus, the indefinite ceramic material is automatically transformed into constant shape and constant amount batches which are supplied into a predetermined apparatus simply in short time. The compacting and deaerating of the ceramic batches can be effected during the operation of supplying the constant batches.