The purpose of the present invention is to provide a single cell analysis device in which the improvement of the nucleic acid capturing efficiency and the improvement of the cell capturing efficiency are both achieved and a highly accurate single cell analysis data is thereby obtained. The present invention relates to an improvement of a cell analysis device including a two-dimensional array chip having a plurality of cell capture parts capable of capturing a single cell in each of the capture parts, and nucleic acid capture parts corresponding to the respective cell capture parts, the nucleic acid capture parts being capable of capturing a nucleic acid extracted from the cell captured by the cell capture part.