Double-row nucleic acid extraction box suitable for nucleic acid diagnosis system

The utility model belongs to the technical field of nucleic acid diagnosis, and particularly relates to a double-row nucleic acid extraction box suitable for a nucleic acid diagnosis system, which comprises a box body, a top cover arranged at the top of the box body, a mounting groove fixedly connected in the box body, a fixed block fixedly connected at the top in the mounting groove, and a placing groove fixedly connected at the top in the mounting groove, according to the test tube box, the top cover capable of being opened is arranged, when all the test tubes are installed in the box body and the box body does not need to be used, the inner ring is arranged on each test tube, the first clamping block is arranged on one side of each inner ring, the first reset spring is fixedly connected to the bottom of each first clamping block, and the outer ring is arranged in the fixing block. Due to the fact that the top cover is rotationally connected with the box body, the top end covers the upper portion of the box