The utility model relates to the technical field of oil-immersed transformers and specifically relates to a curtain oil duct and a curtain oil duct fabricating mold. The curtain oil duct fabricating mold comprises a long supporting plate, wherein the two long edges of one side surface of the long supporting plate are fixedly connected with a first slender rod group and a second slender rod group, respectively; the first slender rod group comprises a plurality of first slender rods; the second slender rod group comprises second slender rods the number of which is identical with that of the first slender rods; all the first slender rods are fixedly connected with one long edge and evenly distributed in the extension direction of the long edge; all the second slender rods are fixedly connected with the other long edge and evenly distributed in the extension direction of the long edge; the first slender rods and the second slender rods are all perpendicular to the long supporting plate. The curtain oil duct comprises two thermal shrinkage bands parallel to each other and a plurality of stays stretching across the two thermal shrinkage bands; the thermal shrinkage bands are fixedly connected with the strays; all the stays are arranged in parallel and distributed evenly, and all perpendicular to the thermal shrinkage bands. The curtain oil duct fabricating mold is convenient for manufacturing the curtain oil duct which is free from insulating paper breakage and does not block an oil way.