The aim of this work was to explore the effects of agricultural mineral “Spain River” carbonatite(SRC), as an inorganic compost additive, on composting process and quality of animal- and plant-derived compost.Two treatments，without SRC(Control)and with SRC，were set up at pig manure compost and cabbage waste compost.The compost temperature profile, dynamics of organic carbon(C)and nitrogen(N), C and N loss were used to depict the composting process, and total nitrogen(TN), total phosphorus(TP), total potassium(TK), total calcium(Ca), total magnesium(Mg), electrical conductivity(EC), germination index(GI)were observed to evaluate the end-product quality.In the composting of pig manure, compared to the control, SRC addition increased the average temperature of entire composting period, C loss, N loss, TP, Ca, Mg and GI by 2.0%, 16.1%, 56.2%, 16.5%, 189.8%, 26.6%, 5.3%, and decreased TN, TK and EC by 18.9%, 14.2% and 27.3%, respectively.Similarly, in the composting of cabbage wastes, SRC addition increased the average temperature of entire composting period, C loss, N loss, TP, Ca, Mg and GI by 0.7%, 21.1%, 169.1%, 186.6%, 164.0%, 148.7%, 6.3%，and decreased TN, TK and EC by 26.4%, 18.5% and 38.3%, respectively.In conclusion, SRC, as an inorganic compost additive, accelerated the composting process and improved the content of P, Ca, Mg and the safety of end-product, but increased the loss of C, N and K.