Self-cleaning kitchen knife

The invention discloses a self-cleaning kitchen knife. The self-cleaning kitchen knife comprises a handle and a kitchen knife body; the kitchen knife body comprises a knife back and a knife edge; thekitchen knife is characterized in that a water storage tank is arranged on the knife back; the bottom surface of the water storage tank is horizontally attached and fixed to the top surface of the knife back; the top surface of the water storage tank is provided with a water injection port; a plurality of nozzles facing the kitchen knife body are arranged on the lower portions of the two sides ofthe water storage tank at intervals; and each nozzle is provided with a switch for controlling the nozzle to spray water. By fixedly arranging the water storage tank on the top surface of the knife back of the kitchen knife, the nozzles capable of spraying water are arranged on the lower portions of the side surfaces of the water storage tank, the switches are further arranged, the nozzles can becontrolled to spray water t