The mixed flow, inclined flow blower fan is a new type fan as the middle that between the centrifugal and maxal flow fans, has the advantages of the both, because it is designed by the means of inclined flow meridian accelerating, comparing to the both of same types, its pressure is higher than axial fan, and the wind rate is larger than centrifugal fan, it is characterized with the merits of high efficiency, wide-range of high efficiency area, low noise, compact structure, easy for installation. It is widely used in the industrial and mining enterprises, high-grade domestic building for being air in-take exhausting system.