Abstract: In recent years, under the background of the continuous development of automation technology, the overall technical level of the mechanical design and manufacturing industry has improved signifi cantly, but the problems of large energy consumption and serious waste of resources have not been effectively solved, which is obviously not in line with the current sustainable social and economic development Claim. Based on this, this article analyzes the important role of energy-saving concepts in the field of mechanical design and manufacturing, and discusses the application of energy-saving concepts in mechanical design and manufacturing and automation technology, in order to provide a certain degree of environmental pollution control and sustainable development in the mechanical design and manufacturing industry. reference.