Abstract:Liaocheng coal area has 6 sheets which belong to Tai yu an formation, and 2 sheets which belong to Shanxi formation. Organic micro-compo sitions are majorly composed of vitrinite, also including niertinite, semi-vitri nite, exinoid group; inorganic micro-compositions are majorly composed of clay g roup, others are carbonate and sulphide group. All kinds of micro-components and sulphide occurrence varied through vertical sense in different coal strata whic h is the reflection of coal concentration.