The concept of "Plant factory" could realize the multiple targets of high yield, high quality, high efficiency and security. It had become the trend of agricultural development. It solved the growing contradiction between people's increasing demand for green, organic food and the diminishing agricultural arable area in China. According to the research on the key technologies of plant factory, a small simulated environment for crop growth (i.e., a growth cabinet) was designed. The growth cabinet used the light-emitting diode (LED) light source as crop growth light and simulated ecological environment artificially based on the requirement of crop growth and development. The crop can obtain suitable environmental conditions for growth and development in anti-season and non-suitable environmental conditions by using the sensor and embedded technology. The results of experiments showed that the crop growth cabinet's structure design was reasonable and had the advantages such as reliable performance, low-carbon, intelligence and security.