The invention discloses a method for reusing benzene hydrogenation sulfur-containing wastewater. The method for reusing the benzene hydrogenation sulfur-containing wastewater comprises the following steps: A) pretreating the benzene hydrogenation sulfur-containing wastewater; B) preparing sodium disulfide; C) preparing a dithioether compound; and D) performing aftertreatment and recycling on wastewater of dithioether compound preparation. In particular, in the step D), the wastewater generated in the step C) is subjected to predistillation, the wastewater of predistillation is directly recycled to a sodium disulfide preparation stage to dilute sodium sulfide; a sodium hypochlorite solution is added into the residual wastewater after predistillation, secondary distillation is conducted, andthe wastewater of the secondary distillation is prepared into liquid alkali to be recycled to a benzene hydrogenation section to absorb hydrogen sulfide. By adopting the method, resource utilizationof sulfide in the wastewater is facilitated, circulation of the wastewater is realized and discharge of the benzene hydrogenation wastewater is avoided.