The invention relates to the technical field of aquaculture equipment, in particular to a pond sludge stirring and spraying device which comprises a hull, a spraying mechanism, a water pump and a driving mechanism. The hull is provided with a water tank, the water tank is provided with a water inlet, an opening-closing component is arranged at the water inlet, the spraying mechanism comprises a supporting shaft, a connecting rod, a spray pipe and a lifting mechanism, the supporting shaft is arranged on the hull, one end of the connecting rod is rotatably arranged on the supporting shaft, the spray pipe is fixedly arranged at the other end of the connecting rod along the left-right direction of the hull, spray holes are formed in the spray pipe, the lifting mechanism is fixedly arranged on the hull and used for driving the connecting rod to swing around the supporting shaft, the water pump is fixedly arranged on the hull and used for pumping water in the water tank to the spray pipe, and the driving mechanism is fixedly arranged on the hull and used for driving the water pump, the lifting mechanism and the hull to move. By the aid of the pond sludge stirring and spraying device, thrown materials can be sufficiently mixed with pond sludge, and sludge treatment effects are improved.