The invention relates to a method for producing carbon black for a shielding material in a cable. The method comprises the steps that fuel gas and preheated air are input into a combustion section ofa reaction furnace, and the volume ratio of air to gas is (16 to 1) to (17 to 1), and the combustion temperature of the combustion section reaches 1850 DEG C to 1900 DEG C, the flue gas flow rate generated in the combustion section reaches 120 m / s to 150 m / s; preheated anthracene oil is pumped into a throat section of the reaction furnace, the flow rate of the anthracene oil is 3500 kg / h to 4200 kg / h, the quality index of the anthracene oil is that: the mass ratio of toluene insoluble matter is less than or equal to 0.2%, density rho 20 at 20 DEG C is 1.13 g / cm<3> to 1.15 g / cm<3>, viscosity E80 is less than or equal to 2, the water volume ratio is less than or equal to 1%, the fraction before 210 DEG C is less than or equal to 1%, the fraction before 360 DEG C is more than or equal to 60%;cold water is sprayed to a quenching section of the reaction furnace to terminate the reaction of the anthracene oil in high temperature environment, the reaction time of the anthracene oil is 0.2 sto 0. 3 s. The carbon black obtained by the method has a moderate nitrogen adsorption specific surface area and particle strength, a high purity of carbon black, a good dispersibility of carbon black,a high degree of structure, and a low volume resistivity when carbon black is combined with EVA.