Constant-temperature fluorescence detector and detection system

The invention provides a constant-temperature fluorescence detector and a detection system, the constant-temperature fluorescence detector comprises a shell, a multi-channel fluorescence detection module, a uniform mixing module, a preheating module, a first heating module, a scanning module and a controller, and a mounting groove for mounting a micro-fluidic chip is formed between the multi-channel fluorescence detection module and the first heating module; a preheating module and/or a uniform mixing module for uniformly mixing the micro-fluidic chip and a scanning module are respectively arranged in the mounting groove; the scanning module is used for scanning and identifying a program code on the micro-fluidic chip; a plurality of running programs matched with the program codes are arranged in the controller, and the controller is used for driving the multi-channel fluorescence detection module, the uniform mixing module, the preheating module and the first heating module; the first heating module is used