The invention relates to a subsection water injection tubular column for the shallow measurement in a vertical well section of a horizontal well. The subsection water injection tubular column comprises a safety joint, a water distributor for shallow measurement in the horizontal well, an inner pipe, an outer pipe, a sealing integrated packer water distributor, a centering device 5, a horizontal well washing valve and a shaft. The safety joint is arranged in the shaft; and the water distributor for shallow measurement in the horizontal well, the inner pipe, the outer pipe, the sealing integrated packer water distributor, the centering device 5 and the horizontal well washing valve are sequentially arranged and connected at the lower part of the safety joint. The subsection water injection tubular column has the characteristics that water injection can be realized through two segments, pressure and flow tests originally needing to be carried out in a horizontal section can be carried out in the vertical well section, the success rate of test and modification is high, the invested cost is low, the water injection can be carried out through two sections, the pressure and flow tests of the whole well can also be carried out in the vertical well section, a packer has good sealing and layering effect, the reliability and success rate of resting are high, the data is accurate, the efficiency is high, and the like.