Plant factory is an efficient agricultural system that realizes the annual continuous production of crops through high-precision environmental control in the facility. It uses intelligent computer and electronic sensing system to automatically control the environmental conditions such as temperature, humidity, light, CO2 concentration and nutrient solution of plant growth, It is a labor-saving production mode that makes the growth and development of plants in the facility not or rarely restricted by natural conditions.

Plant factory is an advanced stage in the development of modern facility agriculture. It is a production system with high investment, high technology and fine equipment. It integrates biotechnology, engineering technology and system management to separate agricultural production from the constraints of natural ecology. It is a industrialized agricultural system that produces plant products every year according to the plan, It is one of the most dynamic and potential fields for absorbing and applying high-tech achievements in the process of agricultural industrialization, and represents the development direction of agriculture in the future.