For China, whose energy structure is characterized by “rich in coal, short of oil and gas”, the shortage of oil-gas resources makes coal resources in a very vital position, and the impact of its combustion on the atmospheric environment has not be ignored. The clean and efficient combustion and utilization of coal has become one of the significant problems to be solved. The paper summarizes the technical achievements of Shandong Energy Group in the civil and industrial fields of efficient and clean combustion and utilization of coal and its application in the civil and industrial fields in recent years. In the civil field, the concept of "coal furnace matching" is proposed, and the decoupling combustion technology is applied to household stoves, while the staged combustion technology and staged pyrolysis gasification reburning technology are applied to district heating stoves. The use of household stoves and district heating stoves in many places shows that the new stoves can reduce the NO_x emission concentration by more than 33%. With the new technology of fixed bed low-temperature dry desulfurization, the ultra-low emission of coal-fired pollutants can be achieved, thus effectively reducing the emission of pollutants from bulk coal combustion in rural and suburban areas. In the industrial field, the research on the clean combustion technology of coal slime is mainly carried out. The concept of "effective storage of limestone" proposed for the first time discusses the essence of the desulfurization efficiency in CFB boilers from a new perspective. The thermal explosion mechanism of industrial grade coal slime is helpful to analyze the reasons for the fluctuation of pollutant emission concentration of coal slime CFB boilers. The industrial application results of the above theory show that the amount of desulfurizer is reduced by 15% under the same conditions; Fine particle CFB combustion technology and preheating pulverized coal boiler combustion technology can effectively reduce the original emission concentration of the boiler, providing a new method and way for efficient and clean combustion of coal based fuel. The practical application results verify the feasibility of these technical achievements, which has certain reference significance for the efficient and clean combustion and utilization of coal. It should be noted that the coal used for the experiment and practical application of the technical achievements comes from the mines of Shandong Energy Group. The diversity of coal determines that the above combustion technologies cannot be applied to all coal based fuels, and the applicability of other coal types needs to be further verified and optimized.