"220V AC Cooling Fan" as an important type of fluid machinery, widely used in various sectors of the national economy, is one of the major energy-consuming machinery, energy saving is an important area of research. The study showed that: increase the centrifugal ventilation "220V AC Cooling Fan" impeller design level, is to improve the efficiency of centrifugal fan, expanding its range of operating conditions of the key. From the centrifugal fan impeller design and use of technology to improve the boundary layer control centrifugal ventilation "220V AC Cooling Fan" impeller performance of these two aspects of the ways and means of improving the performance of centrifugal fan recent study proposed inductive analysis.