1、 In the past 40 years of reform and opening up, China's coal industry has achieved a historic leap. In the past 40 years, China's coal industry has complied with the trend of the times, carried forward the spirit of "coal miners are particularly able to fight", made great strides in reform, concentrated on Development, and radiated vigor and vitality. The coal industry has achieved a historic leap. （1） The supply capacity of high-quality coal has increased significantly. The proven coal reserves in China increased from 596 billion tons in 1978 to 1.67 trillion tons in 2017. A total of 4.44 billion tons / year of new coal production capacity has been added, and more than 1200 large-scale coal mines with an annual output of 1.2 million tons and above have been built, and the proportion of production has increased to over 80% (42 of them are 10 million tons, with a capacity of 673 million tons / year; 37 of them are under construction and expanded, with a capacity of 471 million tons / year); the national coal production has increased from 620 million tons in 1978 to 2000 1.384 billion tons, 3.68 billion tons in 2018, and 77.3 billion tons of coal. The death rate of one million tons of coal mines in China decreased from 9.713 in 1978 to 0.093 in 2018, realizing a significant improvement in the coal mine safety situation. The main coal railway transportation channels, such as Daqin, Shuohuang, Mengji, Wari and Jitong, have been built, with the national railway coal transportation volume reaching 2.38 billion tons; a number of coastal and riverside coal transfer ports, such as Qinhuangdao, Jingtang Port, Caofeidian, Huanghua and Nanjing, Wuhan, have been built, with the coal transfer capacity greatly improved. China's coal production and supply guarantee capacity has been significantly enhanced. (Figure 1-figure 6) (2) the driving force of scientific and technological innovation has been greatly improved. The coal science and technology innovation system has been gradually improved, and significant progress has been made in basic theoretical research and key technology research, such as resource development, major disaster prevention and control, clean utilization and efficient transformation. In the past 40 years, the whole industry has won 12 first prizes of national science and technology progress and 5 golden prizes of Chinese patents. "Core technology and industrial demonstration of clean and efficient utilization of coal" has been selected into 40 landmark major scientific and technological achievements in 40 years of reform and opening up. From 2002 to 2017, 3442 science and technology progress awards (including 23 special awards and 352 first prizes) were awarded by Coal Industry Association. The localization capacity of key equipment and parts such as high-power shearer, conveyor, high mining height electro-hydraulic control support, Internet of things, and new intelligent sensor has been significantly enhanced, which strongly supports the construction of large-scale modern coal mines in China. 145 intelligent coal mining working faces have been built, and the coal production mode is changing from extensive to intensive and efficient modernization. The mechanization degree of coal mining in large-scale coal enterprises increased from 32.34% in 1978 to 96.1% in 2018, and the mechanization degree of tunneling increased from 14.5% to 54.1%; the per capita production efficiency of coal mines in China increased from 137 T / A to 1000 t / A, an increase of 6.3 times. The annual per capita efficiency of Bulianta coal mine in Shendong mining area of national energy group is more than 50000 tons (the working efficiency of raw coal reaches 167.76 tons / work); the annual per capita efficiency of east open pit mine of China Coal Pingshuo group is 68000 tons (the working efficiency of raw coal reaches 222.94 tons / work), which is at the international advanced level. (Figure 7) (3) the guarantee role of institutional mechanisms has been significantly enhanced. From the pilot coal price reform in 1992 to the cancellation of annual coal orders led by government departments, from the dual track coal price system to the cancellation of the combination of key power coal contract prices and the listing of coking coal and power coal futures in 2013, substantial progress has been made in coal market reform. The "medium and long term contract" system and the pricing mechanism of "base price + floating price" established since 2017 provide the system guarantee for the stable operation of the coal market. The national coal trading system and price index system have been gradually improved, the decisive role of the market in the allocation of resources has been significantly enhanced, a unified and open coal market system with orderly competition has been gradually formed, and the quality of industrial economic operation has been continuously improved. （4） New steps have been taken to optimize and upgrade the industrial structure. The number of coal mines in China has decreased from more than 80000 in the 1980s to more than 5800 at present, and the average scale of single well in China has increased from less than 50000 tons / year to more than 900000 tons / year. The number of enterprises with an annual output of more than 20 million tons has grown from 2 to 28 (7 of which are 100 million tons), and the industrial concentration has increased significantly. The integration development of upstream and downstream industries of coal, the integration development trend of coal power, coal char, coal chemical industry and coal steel is obvious; new technology and new mode promote the coordinated development of multiple industries such as new energy, modern logistics, e-commerce, financial services, mining area leisure tourism and health care for the aged; new progress has been made in the transformation of coal from a single fuel to both fuel and raw materials. In 2018, the capacity of coal to oil, coal to olefin, coal to gas and coal to glycol respectively reached 11.38 million tons / year, 11.12 million tons / year, 5.1 billion cubic meters / year and 3.63 million tons / year. The proportion of non coal industry in some large coal enterprises exceeds 60%. New progress has been made in the transformation and upgrading of the coal industry. （5） New progress has been made in the construction of ecological civilization. In the past 40 years, China's raw coal selection rate has increased from 16.7% to 71.8%, increasing by 55.1%; the comprehensive utilization rate of coal gangue has increased from 27% to 70%, increasing by 43%; the utilization rate of mine water conservancy and land reclamation has reached 72.8% and 49.5%. Water conservation mining, filling mining, CO mining of coal and gas, no coal pillar mining, etc. have become important supports for the construction of green mines; coal-fired power generation has basically achieved ultra-low emissions; deep processing of coal has been widely promoted, and the quality of commercial coal has been continuously improved; demonstration of high-efficiency coal-fired industrial boilers, low-order coal classification and quality utilization has been successful, and the level of clean, efficient and intensive utilization of coal has been greatly improved 。 Land reclamation and mining subsidence area treatment