The invention provides a method for producing high-purity sulfur through sulfur paste extraction. The method comprises the following steps: (1) crushing and screening dried sulfur paste; (2) introducing pretreated raw materials and an organic solvent into a reactor with a steam heating jacket, and carrying out an extraction reaction at a certain temperature, wherein the organic solvent specifically is one or a mixture of more of xylene, solvent oil 200# and heavy benzol; (3) subjecting the obtained reacted solution to heat-preserving filtering treatment, then, introducing the treated solutioninto a crystallizer, and carrying out cooling crystallization and solid-liquid separation, thereby obtaining the target required sulfur; and (4) introducing the organic solvent cooled in the step (3)into the reactor in the step (2) again for recycle. According to the method, the sulfur is purified by making full use of high-temperature solubility of the organic solvent to the sulfur; and meanwhile, the method has the advantages of simple process, stability in operation, low production cost, high recovery rate, high purity and the like, so that the resource-converting utilization of wastes canbe effectively achieved.