The invention discloses a series-connecting impeller generation device, wherein a plurality of impellers which are connected in series on a first shaft and a second shaft are disposed on a supporting table, the impellers, the first shaft and the second shaft are disposed symmetrically on two ends of a box body, the first shaft and the second shaft are connected by a coupler, a third shaft and a fourth shaft are disposed vertically inside the box body, one end of the third shaft is fixed on the top part of the box body, the other end is connected with one end of the fourth shaft by a belt pulley, the other end of the fourth shaft passes through the lower end of the box body to be connected to an electric generator, and the electric generator is connected to electric equipment by wires. In the series-connecting impeller generation device provided by the invention, the multiple impellers which are connected in series are fixed on the supporting table by a support, the electric generator obtains a large power source and generates huge generating capacity through simultaneous rotation of the multiple impellers, so that simultaneous electricity utilization of multiple kinds of equipment can be satisfied. The series-connecting impeller generation device provided by the invention is simple in structure, convenient in utilization, energy-saving, environment-friendly and extensive in application, and can be applied to different environments such as lands, rivers and oceans.