The invention discloses a method for 3D printing of super-hydrophobic structures on electric scissor blades. The method comprises the following steps: 1) the electric scissor blades are positioned andfixed on a fixture; 2) a 3D printing technology is used for directly molding the needed super-hydrophobic structures on the surfaces of the electric scissor blades; when one layer thickness is printed, the fixture is rotated by a certain angle; the printing is performed again according to the same path information, and the fixture is rotated by the same angle; the same path information is printeduntil surfaces covered by the electric scissor blades are printed; then, the fixture is returned to an initial position; the printing is performed according to the next layer of path information; andthe operations are repeated until the super-hydrophobic structures cover the surfaces of the electric scissor blades; and 3) the molded electric scissor blades are heated. The method realizes one-step preparation, achieves high speed and high efficiency, needs no subsequent chemical reagent treatment after printing, reduces the pollution, and achieves higher mechanical strength and wear resistance; and the wear resistance is nearly not influenced.