The utility model relates to a layered technological tubular column which overcomes the shortcomings that in the prior art, interlayer interference is serious, oil extraction of oil wells cannot be carried out smoothly, and the existing respective extraction technology cannot meet extraction needs. The layered technological tubular column comprises a packer I, a safety connector I, a sieve tube I, a sealing work cylinder I, a safety connector II, a packer II, a safety connector III, a sealing work cylinder II, a sieve tube II and a screwed plug which are fixedly connected through oil tubes in sequence from top to bottom. The packer I is positioned above an upper oil layer, and the packer II is positioned between the upper oil layer and a lower oil layer. The sieve tube I is positioned on the upper oil layer, the sieve tube II is positioned on the lower oil layer, and the inner diameters of the sealing work cylinder I and the sealing work cylinder II are smaller than those of the oil tubes. The layered technological tubular column has the advantages of being reasonable in structural design, and capable of being matched with lifting tubular column in different forms, avoiding the interlayer interference and effectively increasing well yield and production time efficiency.