The industrialized production method for preparing simple substance and high purity arsenic disclosed by the present invention relates to a method for industrialized arsenic production, in particular to a high purity (the purity is above 99.9999 percent) continuous industrialized production method. The concrete method is realized by: first, using industrial arsenic with the purity of 99 percent the raw material, to be sublimated; second, performing chlorination reaction and synthetizing AsCl 3 ; third, distilling; fourth, dechlorinating; fifth, performing fractional dictillation through a first tower, a second tower, and a third tower; sixth, performing hydrogen reduction to obtain the end product, and packing in a non-oxygen condition. The present invention has the advantages that the vacuum sublimation is adopted, the purity of the raw material can reach 99.99 percent from 99 percent of the industrial arsenic through once sublimation, and the production capacity can be improved; the dechlorinating and the distilling processes of the present invention can eliminate various impurities with only one step, can reduce the waste material, and improve the yield rate. The other remarkable advantage of the present invention is continuous production, thereby overcoming the severe abuses of heavy pollution, unstable quality, etc.