A sliced piece is continuously cut from plural sample blocks with a less fear of failing to make a sliced piece specimen even if continuously operated and, moreover, without causing a hand to intervene. There possesses a sample block attaching/detaching means which, on the basis of an exchange command signal, detaches a sample block attached to a cutting base and instead attaches a new sample block to the cutting base, a cutting means which cuts a sliced piece of a predetermined thickness by relatively moving a knife with respect to the sample block having been attached to the cutting base, an observation means observing the sliced piece having been cut, and an evaluation means which judges whether the sliced piece is good or not good by comparing an observation data having been obtained by the observation means and a sample block cut face data having been previously inputted and which, when there has been judged that the sliced piece is good, transmits an exchange command signal to the effect that the sample block is to be exchanged to the sample block attaching/detaching means.