Bulk rock chemistry of Hujialing garnet clinopyroxenite inRizhao of the Sulu ultrahigh-pressure metamorphic belt is rich in fusible composition and low in refractory composition when compared with that of the primary mantle. Whole rock has 44.04％～50.50％ SiO2，high MgO（12.77％～18.73％），high CaO/Al2O3 (1.6～8.0)，low alkali and Mg# 74.82～86.13), which shows that the rock has an affinity to alumina-depleted komatiite. The REE partition pattern has the form of clinopyroxne and relative HREE depletion withe（Gd/Yb)N being 3.51～5.87. The total PGE concentration varies in a wide range of 19.18×10-9 ～59.44×10-9and is higher than that of xenolith and Alpine type peridotites with （Pd/Ir)N of 8.58～11.07. All of these characteristics indicate that the magma which produced the garnet clinopyroxenite was formed mainly by melting of the clinopyroxene from the mantle source with residual garnet. The phases of the rock before exhumation might have been clinopyroxene+garnet.The high concentration and positive slope of PGE suggest that their distribution was controlled by a high degree of partial melting and that magma was sulfur-unsaturated without sulfide segregation.