An array platform for three-dimensional cell culturing and drug testing and screening is disclosed. In the array platform, a hydrogel-cell mixture injection area is used to inject kinds of hydrogel-cell mixtures. Cell observation areas are connected to the hydrogel-cell mixture injection area. Electrodes are disposed under the cell observation areas and automatic cell quantification and three-dimensional cell co-arrangement of the kinds of hydrogel-cell mixtures in the cell observation areas through the electrodes to imitate a structure of body’s tissues. A drug injection area is used to inject kinds of drugs. Drug combination generators respectively correspond to the cell observation areas and are connected to the drug injection area. The drug combination generators all have micro-flow channel structure and used to generate drug combinations according to the kinds of drugs. |