The metal fiber sintered felt is to combine the multi-metal wires into bundles and stretch them to the available fiber diameter at the same time, then cluster them into wires with the same weight and standard diameter, cut them off, use the combined felt, and then arrange several fluffy felts with different diameters together in turn to form a thick stacked fiber, so that the fibers cross into a gap, and then sinter the felt after high temperature and vacuum sintering, The common material is stainless steel 316L.