A rotary weeding device is disclosed and includes: a cylindrical shell； amotor and atransmission connected to the motor, both of which are provided within theshell； a shaft drivenby the transmission； and a composite cutter arranged at a distal end of theshaft； the motor maybe driven by a DC battery or AC to drive the transmission, and thus rotatingthe compositecutter through the shaft； a proximal end of the shell is provided with aconnecting rod connectedto a control handle, with power lines of the DC battery passing through theconnecting rod； andthe control handle is provided with a speed tuning switch and a chargingsocket. The weedingdevice is advantageous over the existing weeding device for the manner ofrotary drilling-cutand breaking of both leaves and roots of individual weeds. The nearbygrassland may not bedamaged during the weeding operation because the composite cutter is small.The weedingdevice is also advantageous for a higher efficiency and a better effect overthe traditionalmanual weeding.
