Constant-temperature nucleic acid detection device

The utility model discloses a constant-temperature nucleic acid detection device which comprises a chip body, a plurality of groups of reaction components are arranged on the chip body, and each group of reaction component comprises a sample injection hole, a sample accommodating cavity, a liquid inlet flow channel and a reagent packaging reaction cavity; a sample accommodating cavity is correspondingly arranged below the sample injection hole, the near end of the liquid inlet flow channel is communicated with the corresponding sample accommodating cavity, and the far end of the liquid inlet flow channel is communicated with the corresponding reagent packaging reaction cavity; a freeze-drying reagent is arranged in the reagent packaging reaction cavity, and the liquid inlet flow channel is used for guiding a sample to be detected into the reagent packaging reaction cavity. According to the constant-temperature nucleic acid detection device provided by the utility model, freeze-drying reagents of various speci