Abstract: In the field of coal catalysis,the inorganic iron catalysts are toxic and the dispersion of CaO is poor. In order to improve the catalytic efficiency,it is urgent to find a new organic-inorganic composite coal catalyst. In this study,the load rate of nanometer calcium oxide supported ferrocene composite catalyst(CaO-Fe(Cp)_2) was 85.46%,and(CaO-Fe(Cp)_2) was prepared by calcined calcium oxide at high temperature and impregnated with carbon dichloride solution. The catalytic properties of bituminous coal in Huating donghua town coal mine, such as burning loss rate,heat value release rate,sulfur release rate,ash content and ash melting property were studied.The catalytic performance of nanometer CaO-Fe(Cp)_2 composite catalyst was better than that of CaO and ferrocene alone. When burning at 500 ℃ for 2.5 h,the combustion loss rate of the coal sample with the addition of nanometer CaO-Fe(Cp)_2 composite catalyst is 24.95%higher than that of the raw coal,which is 13.20% higher than that with the addition of 1% nano CaO,and 6.95% higher than that with the addition of 1% ferrocene. The calorific value release rate of the coal sample with nano-cao-Fe(Cp)_2 composite catalyst increases by27.16% compared with that of raw coal,9.63% compared with that of coal with 1% nano CaO and 4.75% compared with that of coal with1% ferrocene. The sulfur release rate of CaO-Fe(Cp)_2 composite catalyst is 5.87% lower than that of raw coal,3.98% higher than that of CaO with 1% nanometer,and 9.92% lower than that of ferrocene with 1%. The ash content of the coal sample with the addition of nanometer CaO-Fe(Cp)_2 composite catalyst is10.58% lower than that of raw coal,13.50% lower than that of coal samples with 1% nano CaO and4.28% higher than that of coal samples with 1% ferrocene. The results show that nanometer CaO-Fe(Cp)_2 composite catalyst is evenly distributed in coal,which increases the contact area with coal molecules,increases the reaction reactivity,accelerates combustion rate,promotes the sulfur release,reduces the ash content,and releases Fe_2O_3 slowly at the initial stage of catalysis to avoid catalyst poisoning. As a new type of high efficiency coal burning catalyst,it has a broad application prospect.