The invention relates to a pathological embedding paraffin supply nozzle, which belongs to the technical field of a pathological paraffin block manufacturing tool. The pathological embedding paraffin supply nozzle disclosed by the invention comprises a heating ring and a paraffin nozzle, and is characterized in that rotary shafts are arranged at two sides of the paraffin nozzle, each rotary shaft is provided with a clamp arm, the middle section of each clamp arm is provided with a nipping handle, each nipping handle is provided with a finger cushion, the left side of the heating ring is provided with a bent elastic arm, one end of the bent elastic arm is provided with a dehydrating-embedding box support, the side surface of the dehydrating-embedding box support is provided with a slender rod, and one end of the slender rod is provided with a heat insulation pad. The pathological embedding paraffin supply nozzle disclosed by the invention has a simple structure, the operation is simple, convenient, time-saving and labor-saving in pathological tissue embedding, and the working difficulty of medical staff is relieved.