This plant factory system can be modularly stacked in various ways based on the principle of building blocks. Rack levels and heights can be flexibly and easily adjusted without the need for special tools. The plants are cultivated hydroponically. The latest generation of LED chip technology is used for accurate light distribution, while a technology for nutrient supply accurately regulates the growth of the plants. The system is mainly made of non-metallic materials, which are moisture-resistant, anticorrosive and non-deformable.