This volume presents select proceedings from the 5th International Conference on Mechanical Engineering, Intelligent Manufacturing and Automation Technology (MEMAT 2024), held in Nanjing, China. This volume is focused on the rapidly evolving domains of intelligent mechanical designs with automation intelligence. The book captures cutting-edge research, emerging technologies, and interdisciplinary innovations that are shaping the future of engineering. The book covers a wide spectrum of topics—from intelligent mechatronics and micro-machining technologies to advanced control algorithms and fault diagnosis systems. This volume showcases pioneering approaches to integrating mechanical design with automation intelligence. Readers will gain a comprehensive understanding of how digital manufacturing tools (CAx, CAPP, MES, DES), integrated systems, and electric automation principles are reshaping production environments across sectors. The book serves as a valuable resource for researchers, engineers, and professionals for navigating the future of mechanical automation design.