Peristaltic pumps are mainly used to transport gas, liquid or solid-liquid-gas mixture in analytical testing instruments. The fluid can easily realize high-precision quantitative constant flow and variable speed delivery only in the analysis pipeline. The peristaltic pump will not produce shear and damage to the fluid during the pumping process. Analytical instruments are one of the main branches of scientific instruments. With the development and progress of science and technology, especially the development of life sciences, material sciences, environmental sciences, energy sciences, and civil needs, and the increase in demand for on-site and online testing, analytical instruments Portability, miniaturization, and diversification have become the trend and trend of the scientific development of analytical instruments today.