This article focuses on the selection and operation optimization of rice bran oil expanders from the perspective of energy-saving and consumption reduction. It systematically analyzes the key role and working principle of expanders in the rice bran oil extraction process, and elaborates on the influence of core parameters such as temperature, pressure, and moisture on the oil yield. Combining the latest industry experience and technological trends, it provides practical operation skills and energy consumption optimization suggestions to help equipment purchasers, technicians, and production managers scientifically select and efficiently operate expansion equipment, achieving the dual goals of increasing production capacity and saving energy and reducing consumption.