Brief introduction: The microfluidic chip of cell culture can precisely control the material concentration, solution temperature and pH value, provide the living environment similar to the cells in the body, and provide the three-dimensional growth environment to simulate the cells in the body. Advantages: • can precisely control cell microenvironment elements such as substance concentration, solution temperature and pH value; • can provide small and complex structures similar to the living environment of cells in the body, etc.; • provide three-dimensional growth environment to simulate the state of cells in the body, and investigate the behavior of cells (such as gene expression, receptor action and other life activities, etc.).