The invention relates to an arc extinguishing nozzle and a fabrication method thereof, and belongs to the technical field of a high-voltage circuit breaker. The arc extinguishing nozzle comprises an internal functional layer and an external functional layer which are sequentially arranged along a radial direction, wherein the internal functional layer comprises an ablation-promotion inorganic filler and polytetrafluoroethylene, the external functional layer comprises an ablation-resistant inorganic filler and the polytetrafluoroethylene or the external functional layer is the polytetrafluoroethylene, the ablation-promotion inorganic filler is molybdenum disulfide, and the ablation-resistant inorganic filler is boron nitride. In the arc extinguishing nozzle, the internal functional layer and the external functional layer are arranged and employ different material formulas; the internal functional layer employs the polytetrafluoroethylene and the ablation-promotion inorganic filler, andablation gas generation can be effectively facilitated; the external functional layer employs the polytetrafluoroethylene and the ablation-resistant inorganic filler, and the ablation-resistant performance of the arc extinguishing nozzle can be ensured; and the internal functional layer and the external functional layer are combined and perform a synergic effect, and the integral performance of the arc extinguishing nozzle is greatly improved.