The invention discloses a hardware part machining polishing device facilitating chip removal of metal surfaces. The hardware part machining polishing device comprises an outer frame main body, a baffle, a first through groove and a first sliding groove; the outer frame main body is internally provided with a horizontal plate; a support rod is arranged on the upper portion of the horizontal plate;a second fixing column is mounted on the outer side of the baffle; a first fixing column is connected to the outer side of the second fixing column; a support rod is fixed on the outer side of the first fixing column; a vertical rod is connected to the upper portion of the baffle; a pressing plate is mounted at the top of the vertical rod; the inner side of the baffle and the inner side of the pressing plate are provided with convex columns; the outer side of the first sliding groove is provided with the outer frame main body; and a sliding plate is arranged in the first sliding groove. The hardware part machining polishing device facilitating chip removal of the metal surfaces is provided with a rubber pad, the interior of the rubber pad is partitioned into a plurality of placement grooves different in size through partition plates, thus, hardware parts in different sizes can be conveniently arranged in the placement grooves in a separated mode, and collision of hardware parts is avoided.