The 21st century is such an age in which the factories pursue for zero-emission production. The situations that a large number of machining fluids are used in a circulation manner should be impelled to change. As a strategy, this paper mainly discusses about the latest advances in the field of eco-machining fluids and zero-emission production in Japan [1~9]. The authors hope that our scholars, experts, and engineering technicians of the same profession can pay an attention to this research tendency.