The equipment manufacturing industry is a strategic industry that provides technological equipment for various industries of the national economy. It has high industrial correlation, strong employment capacity, and intensive technology and capital. It is an important guarantee for industrial upgrading and technological progress in various industries, and a concentrated reflection of the country’s comprehensive national strength. The mechanical industry is an important component of the equipment manufacturing industry, a crucial pillar and leading industry of the national economy and industry. Its total economic output accounts for more than 2/3 of the entire equipment manufacturing industry in China and more than 1/5 of the national industry. In 2018, there were 88200 large-scale enterprises in the machinery industry, accounting for 23.31% of the national industrial sector; The total assets are 23.42 trillion yuan, accounting for 20.65% of the national industrial sector; The main business revenue is 21.38 trillion yuan, accounting for 20.91% of the national industrial sector; The total profit is 1.45 trillion yuan, accounting for 21.84% of the national industrial sector.