Single-row nucleic acid extraction box applicable to nucleic acid diagnostic systems

The invention discloses a single-row nucleic acid extraction box applicable to nucleic acid diagnostic systems. The single-row nucleic acid extraction box comprises a box body, wherein the left and right sides of the box body are respectively provided with a guide groove; the front side of the box body is provided with a thread-off-proof plate; and the inside of the box body is provided with a purified substance storage region, a reagent storage region, a gun head storage region and a reaction region from left to right. The single-row nucleic acid extraction box is simple in structure and easy to manufacture; and the storage tube upper opening, reagent bin upper opening and reaction bin upper opening form stepped distribution, so that the purified substance storage region, reagent storage region and reaction region are separated, thereby avoiding sample cross contamination. The puncture device can simultaneously puncture the sealing films on the two reagent bins each time, thereby enhancing the work efficiency. The lower part of the reagent bin is in an inverted conical structure, so that the useless reagent quantity in the reagent bin is minimized. The reaction bin and the second placement bin are arranged separately, so that the enrichment device can be conveniently arranged on the lower part of the reaction bin, thereby enhancing the enrichment rate. The first and second gun heads of the gun head storage region are convenient for the addition of the reagents and the transfer of the target reagents, thereby avoiding pollution.