The present invention discloses a mandolin slicer kit assembly comprising: a main body having two opposite side panels; a cutting blade mounted on the main body; a slicing plate carrier mounted between the two side panels of the main body; a plurality of slicing plates of different types, each of the slicing plates having a plurality of slicing teeth mounted on a top surface thereof and at least one recess formed on a bottom surface thereof; and an adapter plate having a leading portion, wherein said leading portion has at least one elastic rib for detachable engagement with the at least one recess of the slicing plate to form a slicing plate assembly, and said slicing plate assembly detachably is mounted on the slicing plate carrier. The mandolin slicer further comprises a slicing plate holder separate from all of the main body, the cutting blade, the slicing plate carrier, and the adapter plate.