While a pattern side register mark provided on a pattern transferring plate provided with a transfer pattern and a work side register mark provided on a work are optically observed by means of an observation optical system, at least one of the pattern transferring plate and a work surface plate carrying thereon the work is moved in a non-contact state in accordance with information provided by the observation optical system to effect registration between the transfer pattern and the work, so that the pattern transferring plate is pressed to the work thereby to transfer the transfer pattern onto the work.