The purpose of the present invention is to provide a testing kit that makes it possible to reliably determine whether a substance to be detected is present. This testing kit 11 is provided with a test strip 21 in which a sample dripping pad 31, a labeling substance holding pad 41, and a fixing membrane 51 are connected, in that order, and as a dripped liquid sample progressively spreads toward the fixing membrane 51, the substance to be detected is detected at the fixing membrane 51. The test strip 21 has a region where the labeling substance holding pad 41 and fixing membrane 51 overlap at least partially and is provided with a pressing part 910 for pressing a portion in this region in a direction orthogonal to the direction in which the liquid sample spreads. In a flow area P where the liquid sample spreads in the fixing membrane 51, which is outside the flow area R where the liquid sample spreads directly below the region pressed by the pressing part 910, it is possible to confirm, from outside, whether the substance to be detected has been detected.本發明之目的在於提供一種能夠確實地判定有無被檢測物質之檢查套組。本發明之檢查套組11係具備試紙條21之檢查套組，該試紙條21是樣本滴加墊31、標記化物質保持墊41、固定化膜片51按照該順序連接，在所滴加之液體樣本朝向固定化膜片51依序展開之同時，在該固定化膜片51檢測被檢測物質，且試紙條21具有至少標記化物質保持墊41之一部分與固定化膜片51之一部分相互重合之部位，上述檢查套組11具備對該部位中之與液體樣本展開之方向正交之方向上之一部分進行按壓之按壓部910，在固定化膜片51中之液體樣本展開之流域、同時也是被按壓部910按壓之部位正下方之液體樣本展開之流域R以外之流域P，能夠從外部確認被檢測物質之檢測。
