Modified entirely-opening composite guide rail structure

The utility model relates to a modified entirely-opening composite guide rail structure, which can be applied to different cabinets and drawers. The utility model is primarily composed of an outer rail, a moving rail and a drawer rail, wherein the outer rail and the drawer rail are respectively fixed on the inner side of a cabinet and the relative position of the outer side of a drawer. In addition, the moving rail is slid in the outer rail, while the drawer rail is slid in the moving rail. The utility model is characterized in that the drawer rail uses sheet metal to form a frame-shaped slide section in a multiple bending mode, and the drawer rail and the drawer are combined and fixed. By the design, good supporting strength can be obtained and the thickness of used sheet metal can be reduced. The utility model can reduce cost, and can lift machining convenience.