Nylon 6/a-ZrP nanocomposites via melt blending of nylon 6/α-ZrP have been presented. The microstructure, thermal properties and mechanical properties of nanocomposites were studied. XRD results indicated that the content of V-type crystal in nylon 6 increased with the adding of a-ZrP particles. The experimental results of heat distortion temperature indicated that the heat eudurable ability of this composite was enhanced. Among which, the HDT Was increased up to 18% compared with the virgin polymer at a α-ZrP loading of 4%. The mechanical properties testing results indicated that the tensile strength and tensile modulus increased that the increase of α-ZrP loading. The tensile strength and stretch modulus were improved by 23%, 111% respectively at a α-ZrP loading of 4%. However, the reputure elongation and impact strength were decreased with the increase of α-Zirconium Phosphate.