Provided is a lamination unit of ceramic green sheets including a pair of upper and lower plates having a plurality of slits formed therein; a plurality of posts of which the upper and lower ends are closely attached to corresponding surfaces of the respective plates such that the upper and lower plates are supported in parallel to each other; a plurality of fixing sections, each of which is composed of a bolt inserted into a contact portion between the plate and the post and a button surrounding the bolt; and a pressing bar attached on the bottom surface of the lower plate and pressing the top surface of the ceramic green sheets laminated under the lower plate.