Proceeded from the point of view to alter the crystallization state, the effect of excitation plasticization by use of dynamics metamorphic materials containning silicon or containning zircornium etc. for the wear resistant alloy layer obtained by selective laser sintering is studied in this paper. The influence of the metamophic materials on the sintering layer′s chemical composition and on the crystalline state is discussed. The result thows that the structure of the sintering layer can be thinned down and the phenomenon of brittlely cracking in the sintering layer may be eliminated by use of appropriate dynamics metamophic materials.