The invention provides, with a simple technique, a jig for reliably stemming one or a plurality of flow paths and/or a portion of reaction fields continuously provided in a reaction chip, and for making the flow paths and/or reaction fields independent, and a reaction ship processing apparatus.A reaction field independent jig for making a plurality of reaction fields of a reaction chip independent, the reaction chip including a substrate and a lid material, the substrate including at least the reaction fields and a flow path that brings the reaction fields into communication with each other, the lid material being disposed on the substrate on a side where the reaction fields and the flow path are provided, wherein the reaction field independent jig includes one or a plurality of reaction field independent blades that carry out a squashing operation for squashing the flow path from above the substrate and/or from above the lid material, and the reaction field independent blade includes a heater unit that carries out a heating operation. A flow path contact portion of the reaction field independent blade may be of prismoidal or truncated cone shape. An angle portion of an upper surface of the prismoidal or truncated cone shape may have roundness of R0.2 mm or greater.