The concept of “Plant Factory” was first proposed by Japan. It is an advanced greenhouse design, utilizing well - controlled environment and indoor planting technology. The main purpose is to mitigate or avoid plants growth affected by outdoor climate or environmental changes through automated controlling the planting growth elements such as temperature, humidity, sun illumination, CO2 concentration, PH value, fertilizer, etc… By this way, Plant Factory can convert traditional climate - dependent agriculture to be a repeatable and predictable factory production mode. Moreover, both production quantity and quality of plants can be further improved.