To provide an apparatus which can continuously manufacture a polarization film with stable optical characteristics.SOLUTION: A manufacturing apparatus for manufacturing a polarization film from a polyvinyl alcohol resin film includes a conveyance path of a polyvinyl alcohol resin film formed of a plurality of rolls, and two or more treatment tanks that are arranged on the conveyance path and store treatment liquid in which the polyvinyl alcohol resin film is immersed, in which the two or more treatment tanks include a dyeing treatment tank for storing dyeing treatment liquid and a first crosslinking treatment tank that stores first crosslinking treatment liquid in this order from an upstream side of the conveyance path, and in which the polyvinyl alcohol resin film in the first crosslinking treatment liquid is subjected to drawing treatment, the dyeing treatment tank and the first crosslinking treatment tank are arranged so as to be adjacent to each other, and a depth of the first crosslinking treatment tank is smaller than a depth of the dyeing treatment tank.SELECTED DRAWING: Figure 1