The invention discloses an allicin production line, which comprises a raw material storage tank, impurity-removal equipment and a rectifying column, wherein the impurity-removal equipment comprises a refrigerator, a breaking machine, a centrifugal machine and a dissolving tank; the outlet of the raw material storage tank is connected with the inlet of the refrigerator; the ice outlet of the refrigerator is connected with the inlet of the breaking machine; the outlet of the breaking machine is connected with the inlet of the centrifugal machine; the solid discharge hole of the centrifugal machine is connected with the inlet of the dissolving tank; the outlet of the dissolving tank is connected with the inlet of the rectifying column. Compared with a traditional allicin production line, the allicin production line disclosed by the invention is characterized in that the breaking machine and the centrifugal machine are additionally arranged on the basis of freezing impurity removal, so that liquid impurities which are in the presence in solid subjected to cooling crystallization can be removed to further reduce an impurity content; in addition, the filler rectifying column is adopted, so that a purification effect is better, and the purity of the obtained product allicin can be 99.8% or higher.