The entrainment characteristics of fine particles are investigated in a cylindrical fluidized-bed under high speed air flow. The effects of the flow rate of gas, the number of holes, the size of holes, and the distance between holes and the upper surface of the material layer on the entrainment characteristics (entrainment rate and entrained powder-gas ratio) are experimentally studied through orthogonal experiment. The experimental results show that an increase in flow rate of gas and the distance between hole and upper surface of the material layer constantly improves the entrainment characteristics. A decrease in the size of holes enhances such characteristics and improves the entrainment characteristics. Whereas the number of holes has no significant effect on the entrainment characteristics. This study determines that an optimal operating condition can result in optimal entrainment characteristics (W, 3.1 g/min and R, 0.058 g/g), which can be achieved with a flow rate of 2.5 m3/h, the number of holes of 1, the size of holes of 2 mm and the upper surface of the material layer of 200 mm.