The research on the partial melting systematics of subducting carbonated sediments is a necessary part of the study of deep carbon cycle and is also important for investigating the mass cycle, the genesis of magma and the mantle heterogeneity. The partial melting of carbonated pelites under the condition of 6.0 GPa and 800~1600℃ was investigated using the multi-anvil apparatus. The experimental products include garnet, clinopyroxene, coesite, kyanite, carbonates, phengite and melts. The carbonate minerals are calcite and magnesite, which exist at the subsolidus experiments of 6.0 GPa. The experimental bulk composition of this study has the lowest melting temperature for all carbonated lithologies at 6.0 GPa. The partial melts are silicate melts, and their proportions increase with increasing temperature; in addition, their compositions change with increasing temperature.