A carrying tray of a backlight assembly is provided to prevent foreign materials from being generated between the trays in placing products by making the bottom side opened. The carrying tray of a backlight assembly is composed of four extruded bars(100) having handles(104) and an injection-molded article(102) for combining the extruded bars to each other. Four extruded bars are made of polyvinyl chloride and produced in the combination shape of L and inverse L. Holes are formed in a predetermined pattern on a flat part of the extruded bar in which the handle unit and the backlight assembly are contained and supported. The length of the handle unit is over at least 18mm in order to carry materials. The injection-molded article is produced by coating polycarbonate materials or polycarbonate with ABS(Acrylonitrile Butadiene Styrene).