Nucleic acid detection system and nucleic acid detection instrument

The invention relates to a nucleic acid detection system and a nucleic acid detection instrument in the field of biomedical treatment. The detection system comprises more than two totally-enclosed micro-fluidic chips, a chip loading platform, a thermal circulation system, an optical detection system and a user operation system. The totally-enclosed micro-fluidic chips are fixedly loaded on the chip loading platform, the heat circulation system is connected with the user operation system, and the heat circulation system is used for increasing and decreasing the temperature of each totally-enclosed micro-fluidic chip. And the optical detection system is used for performing real-time detection on a sample subjected to nucleic acid amplification in the totally-enclosed micro-fluidic chip and sending a detection result to the user operation system in real time. The kit has the advantages of portability, rapidness, high flux, high automation degree, no pollution, accuracy and the like, and can realize on-site rapid