Nucleic acid extracting apparatus extracts nucleic acids and kits

The present invention provides a gene analysis apparatus, having a reduced possibility of mixing a nucleic acid extracting apparatus and the nucleic acid amplification function, detection. A nucleic acid extraction kit, which has a chaotrope environment using magnetic beads coated with silica, characterized by a kit comprising a nucleic acid extraction, comprising: a magnet cover cloth (52), inside which accommodating the magnet (44) and the magnet (44) with a reaction vessel (2) separated from each other; a wall portion (53) covering the reaction vessel at the magnet cover portion (52) at least a portion accommodated in the reaction vessel in a state (2) the outside; and a wall portion (53), which covers the cover portion at the magnet (52) housed in at least a portion of the reaction vessel (2) a reaction vessel in a state (2) above, thereby, possible to prevent liquids and aerosol scattering, reducing the possibility of mixing.