The flow-type dot matrix luminescence analyzer is widely used, and multiple factors need to be considered when designing, including fluid mechanics, laser system, optical system, data acquisition and analysis, user experience, etc. Among them, fluid mechanics must have high precision and controllability, the optical system should be able to detect and distinguish the signals of different dyes at the same time, data acquisition and analysis need efficient and accurate algorithms, while considering the user experience, the appearance design should be easy to operate, beautiful atmosphere. (Any form of commercial use has been banned)