PURPOSE: A drawer-type storage box used in storing various kinds of miscellaneous articles is provided to allow multi-stack drawer members to be detachably assembled in an extendable manner and to allow upper and lower drawer members to be firmly engaged to each other for alignment. CONSTITUTION: The drawer-type storage box comprises: a plurality of stack plates(5) each having a plurality of vertical pillars(2) installed vertically at regular intervals, and each having an insertion groove(3) and a connection unit(4); an extendable space unit(8) having a projecting flange(10) formed along the outer surface of the connection unit(4); a reinforced connection unit(9) formed inside the extendable space unit(8); an extendable hole(12) formed on a bottom plate(1) of the insertion groove(3) having a locking flange(11) formed along the inner surface of the insertion groove(3); and lateral locking projections(13) for engagement of two vertically adjacent drawer members.
