The invention relates to the technical field of printing rolls, in particular to a production technology of a printing roll. The production technology of the printing roll comprises the following steps: A, cleaning a base roll; B, carrying out surface sand blasting treatment on the base roll to obtain a roll body; C, placing ceramic powder Cr2O3 in ion spraying equipment, then spraying the fused ceramic powder Cr3O3 on the surface of the roll body to form a ceramic working layer on the roll body so as to obtain a roll, wherein the spraying current of the ion spraying equipment is 480-520 A, gas used by the ion spraying equipment comprises helium and argon, the flow of the helium is 18-22 nlpm, the flow of the argon is 30-34 nlpm, the distance from a nozzle of a spray gun to the surface of the roll body is 10-14 cm, the spraying pressure of the spray gun is 4-5 pa, the temperature of the center of flame is 29,000-30,000 k, the temperature of the surface of the flame is 19,000-20,000 k, and flame flow speed is 1,000-2,000 m/s; and D, carrying out grid carving treatment on the roll obtained from the steps so as to obtain the finished printing roll.