PCR reaction system and method

The invention provides a PCR reaction system and method. The PCR reaction system comprises a bottom plate and a PCR reaction chip, and the PCR reaction chip is provided with a reagent cavity; fluid inlets, a plurality of fluid channels and a fluid outlet which are communicated in sequence are formed in the heat conduction component, the inlets are communicated in sequence, and the fluid channels are arranged in parallel; the PCR chip is located in an area defined by the annular component; the heating unit is arranged in the area; the fixed plate is provided with a bulge, the bulge is clamped in the area, and the fixed plate, the heating unit, the PCR reaction chip, the heat conducting component and the bottom plate are arranged in sequence. The device has the advantages of simple structure, uniform temperature and the like. 本发明提供了PCR反应系统和方法，PCR反应系统包括底板、PCR反应芯片，所述PCR反应芯片具有试剂腔；还包括：导热部件内具有依次连通的流体进口、多个流体通道和流体出口，所述进口依次连通，所述多个流体通道并联设置；所述PCR芯片处于环状部件的围出区域内；加热单元设置在所述区域内；固定板具有凸起，所述凸起卡入处于所述区域内，所述固定板、加热单元、PCR反应芯片、导热部件和底板