The invention provides a method for continuously producing a vulcanization accelerant DCBS (N,N-Dicyclohexyl-2-Benzothiazolylsulfenamide) from liquid chlorine as an oxidant. The method comprises the following steps: introducing a salt solution of an accelerant MBT (Mercaptobenzothiazole), dicyclohexylamine, an organic solvent and liquid chlorine into a reactor, implementing an oxidation reaction,and treating a reaction product, thereby obtaining a DCBS product, wherein the reactor comprises a tubular reactor and/or a micro-channel reactor. By adopting the method, crude MBT is adopted as a rawmaterial for directly synthesizing the accelerant DCBS, and in addition, the liquid chlorine is adopted as the oxidant for in-situ oxidation, so that the problem that a great amounts of a raw material alkali liquid and chlorine are consumed in the production process of sodium hypochlorite can be avoided, the amount of wastewater generated in the production process of DCBS can be effectively controlled, the overall benefits of the method can be greatly increased, the yield of the DCBS is as high as 98.5%, and the method has industrial popularization advantages.