Folding collapsible combination storage box assembly

A folding collapsible combination storage box assembly comprising

• two box units each having a collapsible box body, four upright support rods and a hard base plate, said box body being formed of resilient fabric having four vertical peripheral side panels and a horizontal bottom side and defining a top opening, said four upright support rods being embedded in four corners of said collapsible box body, said two box units having a common vertical side panel, said two box units commonly using two upright support rods, said collapsible box body being extended out and supported in a rectangular shape by said upright support rods, said hard base plate being fitted in a respective one of said collapsible bodies for supporting storage items in said collapsible box body, said box body having a rectangular fabric cover panel adapted for closing said top opening, said rectangular fabric cover panel having one peripheral side panel of said box body by stitches and three other sides detachably fastened to a topmost edge of other three vertical peripheral side panels of said box body by a zip fastener, whereby when not in use, said hard base plate of each of said box units is lifted from horizontal to vertical and closely attached to one vertical peripheral side panel of said collapsible box body, and then one of said box units is twisted with another one of said box units into a collapsed flat manner thereby reducing storage space.