Green design and green manufacturing are new design concepts, involving a sustainable development strategy in manufacturing. Definitions of green design, green manufacturing and green product are given. The principles of green design are put forward. It is pointed out that green design and green manufacturing in electromechanical product are developing trends in electromechanical manufacturing. Trends in the green design and manufacturing in electromechanical product are discussed concerning globalization, socialization, integration, parallelism, intelligence and industrialization.