The story begins in the midsummer of 1964. At that time, the international situation was turbulent and changing, and China's northern and southern borders faced military pressure simultaneously. The Central Committee of the Party made a major strategic decision on the Third Front Construction, mobilizing the whole country's strength to build a strategic rear industrial system in the inland mountainous areas. In the layout of the Southwest Third Front, "Panzhihua's mines and Liupanshui's coal" is the core coal-steel linkage strategy, and the Wangjiazhai Coal Mine located in the hinterland of the Wumeng Mountains is the flagship project of the Shuicheng Mining Area of the Liupanshui Coal Base. It shoulders the core mission of supplying high-quality coking coal for the Panzhihua Iron and Steel Base and the Southwest national defense industry, which is directly related to the industrial self-sufficiency capacity of the entire Southwest strategic rear.