Reagent tablet

The utility model discloses a reagent piece. Relating to the technical field of medical consumables, including a substrate, a positioning groove is formed in one end of the substrate; the substrate isalso provided with a positioning hole and a test hole. A reaction film is pasted on the substrate and above the test hole, a siphon structure is arranged on the reaction film, the siphon structure iscomposed of a supporting layer and a hydrophilic film, the hydrophilic film is pasted on the supporting layer, the supporting layer is pasted on the reaction film, a semi-broken line is arranged on the substrate and close to the handle side of the reaction film, and an auxiliary blood suction port is formed in the side close to the semi-broken line of the hydrophilic film. According to the utility model, a new siphon structure is additionally arranged on the reaction membrane of an original detection system needing to be dropwise added with a blood sample; the design and the use of the semi-broken line can be realized