The invention provides a novel high-efficiency and energy-saving rigid and flexible combined stirring impeller. The novel high-efficiency and energy-saving rigid and flexible combined stirring impeller is characterized by comprising a stirring shaft, a rigid stirring impeller I, a rigid stirring impeller II, springs andflexible holed pieces, wherein two nodes are arranged on the stirring shaft, one node is connected with the rigid stirring impeller I, and the other node is connected with the rigid stirring impeller II; the flexible holed pieces are connected between the rigid stirring impeller I and the rigid stirring impeller II, and two ends of eachflexible holed piece in the length direction are in transitional connection with the rigid stirring impeller I and the rigid stirring impeller II through the springs. The technical effect of the novel high-efficiency and energy-saving rigid and flexible combined stirring impeller is undoubted, during rotation of the impeller, energy consumption of blades is reduced, the flexible holed pieces can perform multi-body motion and can produce much high-speed jet during motion, velocity gradient of fluids is increased, turbulence degree of the fluids is increased, energy using ratio of the blades is increased, fluid mixing efficiency is increased, and cost of a stirring device can be saved.