A production method for controlling a specific surface area of a conductive carbon black, comprising firstly introducing an acetylene, and igniting the acetylene to form a reaction zone at a temperature of 1500 to 1800° C., then introducing a hydrocarbon raw material into the reaction zone to occur a pyrolysis reaction, and collecting a product at a temperature of 1300 to 1500° C.,
- wherein the hydrocarbon raw material comprises an aromatic hydrocarbon or an olefin;
- and
- a mass ratio of the acetylene to the hydrocarbon raw material is 1:0.1 to 1:0.4.